draw the lewis structures of the given molecules. include lone pairs on all atoms where appropriate. of2

Answers

Answer 1

Oxygen (O) has 6 valence electrons, and each fluorine (F) atom has 7 valence electrons. Therefore, the total number of valence electrons in OF2 is:

1 × 6 (oxygen) + 2 × 7 (fluorine) = 20 valence electrons

To draw the Lewis structure, we can follow these steps:

Place the atoms in the molecule and connect them with a single bond:

F

|

O -- F

Arrange the remaining electrons around the atoms to satisfy the octet rule (or duet rule for hydrogen). Since oxygen is more electronegative than fluorine, we place the remaining electrons around oxygen first:

F

|

O -- F

:

The colon represents a lone pair of electrons on oxygen.

Distribute the remaining electrons to the fluorine atoms:

F

:|

O -- F

:

Each fluorine atom now has a complete octet.

Check that all atoms have a complete octet. In this case, both oxygen and fluorine atoms have a complete octet.

Therefore, the Lewis structure of OF2 is:

r

Copy code

F

:|

O -- F

:

with 2 lone pairs on oxygen and 3 lone pairs on each fluorine atom.

What is an atom ?

An atom is the smallest unit of matter that retains the chemical properties of an element. It is composed of a nucleus containing positively charged protons and neutral neutrons, surrounded by negatively charged electrons.

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Related Questions

According to the balanced equation, what is the theoretical mole ratio of baking soda to sodium chloride?

NaHCO3 + HCl = NaCl + CO2 + H2O

Answers

Answer:

Explanation:

1;1 since you do not need coefficients to balance the equation

please answer the question for BRAINLIEST asap

Using the formula M1V1 = M2V2 , if I add water to 100.0 mL of a 0.15 M NaOH solution until the final volume is 150 mL, what will the molarity of the diluted solution be?
Question 3 options:

0.23M


1.0M


0.10M


1.0E5M

Answers

Answer:

M2= 0,1 M

Explanation:

M1=0,15 M

V1= 100 mL =0,1 L

M2= ?

V2= 150 mL = 0,15 L

M1V1= M2V2

(0,15 mol/L) (0,1 L) = M2 (0,15 L)

0,015 mol / 0,15 L = M2

M2= 0,1 M

match the problems that arise when a particular situation is present when running a spectrum of a neat liquid:

Answers

The problem that arises when running a spectrum of a neat liquid is that it can be difficult to distinguish the peaks in the spectrum due to the broadening of the baseline.

This is because the baseline broadening is caused by the interaction of the solvent molecules with the solute molecules, which is difficult to avoid. To reduce the baseline broadening, it is necessary to reduce the solvent concentration or use a denser solvent. In addition, it is also important to ensure that the sample is well-mixed, since inhomogeneity in the sample can lead to peak broadening. It is also important to reduce noise in the spectra, since this can lead to peak broadening or obscuring of the peaks. Finally, it is important to carefully choose the range of wavelengths to be measured, since if the range is too wide, then the baseline broadening may obscure the peaks.

In conclusion, the problems that arise when running a spectrum of a neat liquid include baseline broadening, inhomogeneity in the sample, noise in the spectra, and a too wide range of wavelengths being measured. To reduce these issues, it is important to reduce the solvent concentration or use a denser solvent, ensure that the sample is well-mixed, reduce noise in the spectra, and carefully choose the range of wavelengths to be measured.

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Given that 4 NH3 + 5 O2 → 4 NO + 6 H2O, if 3.00 mol NH3 were made to react with excess of oxygen gas, the amount of H2O formed would be

Answers

Answer:

x mol H2O = 4.50 mol H2O

Step-by-step explanation:

From the balanced equation, we can see that for every 4 moles of NH3 that react, 6 moles of H2O are formed. Therefore, we can use a proportion to find the amount of H2O that would be formed if 3.00 mol of NH3 reacted:

4 mol NH3 : 6 mol H2O = 3.00 mol NH3 : x mol H2O

Solving for x, we get:

x mol H2O = (6 mol H2O / 4 mol NH3) * 3.00 mol NH3
x mol H2O = 4.50 mol H2O

Therefore, if 3.00 mol of NH3 were made to react with excess oxygen gas, 4.50 mol of H2O would be formed.

1. What volume of hydrogen gas at STP is produced from the
reaction of 50.0g of Mg and 75.0 grams of HCl? How much
of the excess reagent is left over (in grams)?

Answers

Answer:

1.03 mol of dihydrogen gas will evolve, with a volume slightly over 22.4 dm3 at ST P. Explanation: Moles of magnesium: 50.0 ⋅ g 24.31 ⋅ g ⋅ mol−1 = 2.06 mol Moles of hydrogen chloride gas: 75.0 ⋅ g 36.2⋅ g ⋅ mol−1 = 2.07 mol

Explanation:

HOPE THAT HELPS ! <3

What masses of 15% and 20% solutions are needed to prepare 200 g of 17% solution?

Answers

Answer:

Meant to be used in both the teaching and research laboratory, this calculator (see below) can be utilized to perform a number of different calculations for preparing percent (%) solutions when starting with the solid or liquid material. It is very common to express the concentration of solutions in terms of percentages. Percent means per 100 parts, where for solutions, part refers to a measure of mass (μg, mg, g, kg, etc.) or volume (μL, mL, L, etc.). In percent solutions, the amount (weight or volume) of a solute is expressed as a percentage of the total solution weight or volume. Percent solutions can take the form of weight/volume % (wt/vol % or w/v %), weight/weight % (wt/wt % or w/w %), or volume/volume % (vol/vol % or v/v %). In each case, the percentage concentration is calculated as the fraction of the weight or volume of the solute related to the total weight or volume of the solution.

Because percent solutions can be expressed in three different ways, it is imperative that the type of percent solution be explicitly stated. If this information is not provided, the end user is left to "guess" whether w/v %, w/w %, or v/v % was used. Each percent solution is appropriate for a number of different applications. For example, commercial aqueous reagents, such as concentrated acids and bases, are typically expressed as weight/weight % solutions. For example, commercially available concentrated hydrochloric acid (HCl) is 37% by weight (w/w %). On the other hand, many dilute solutions used for biological research are expressed as weight/volume % (e.g., 1% sodium dodecyl sulfate, SDS). Volume/volume % solutes are also common, and are used when pure solutes in liquid form are used. For example, a 70 % (v/v) solution of ethanol can be prepared by dissolving 70 mL of 100% (i.e., 200 proof) ethanol in a total solution volume of 100 mL.

Explanation:

There are 7.68 × 1025 atoms of phosphorous in how many moles of diphosphorous pentoxide?

Answers

Answer:

7.68 x 1025 atoms of phosphorous correspond to 1.06 mole of diphosphorous pentoxide. This can also be written as 1.06 mol of P2O5.

Let's put this knowledge to the test! How many atoms are in 14 moles of cadmium? Remember that 1 mole would contain 6.02214 x 1023 atoms of cadmium.

Answers

Atoms in 14 moles of cadmium are  84.3 × 10²³ atoms .This is taken out by mole concept via Avogadro number .

What is Avogadro number ?

The Avogadro constant, also known as NA or L, is a proportionality factor that relates the number of constituent particles (typically molecules, atoms, or ions) in a sample to the amount of substance in that sample. It is a SI defining constant with the exact value of 6.02214076×10²³.  Stanislao Cannizzaro named it after the Italian scientist Amedeo Avogadro, who explained it four years after Avogadro's death at the Karlsruhe Congress in 1860.

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To a beaker weighing 263.2 g, you add 87.10 g of water and 0.549 g of sugar. Determine the combined
mass of the beaker, water and sugar (in grams).

Answers

Answer: 350.849 g

Explanation:

The question is asking the masses of water, sugar, and the beaker to be added together. So, it can be understood that we need to add all of the masses up as follows to get the combined mass:

263.2 g + 87.10 g + 0.549 g = 350.849 g

From this, we can determine that the combined mass of the beaker, water, and sugar (in grams) is 350.849 g.

Dissolving 7.51 g of CaCl2 in enough water to make 332 mL of solution causes the temperature of the solution to increase by 3.25 oC. Assume the specific heat of the solution and density of the solution are the same as water′s (about 4.18 J/goC and 1.00 g/cm3, respectively) Calculate ΔH per mole of CaCl2 (in kJ) for the reaction under the above conditions.

Answers

Answer:

65.72 kJ/mol

Explanation:

The temperature change, ΔT, can be used to calculate the amount of heat absorbed by the solution:

q = CmΔT

where q is the heat absorbed, C is the specific heat capacity of water (4.18 J/goC), m is the mass of the solution, and ΔT is the temperature change.

The mass of the solution can be calculated using its density:

m = Vd

where V is the volume of the solution (332 mL = 0.332 L), and d is the density of water (1.00 g/cm3).

m = 0.332 L x 1.00 g/cm3 = 332 g

The amount of heat absorbed, q, can now be calculated:

q = CmΔT = (4.18 J/goC) x (332 g) x (3.25 oC) = 4447 J

This amount of heat is absorbed by the dissolution of 7.51 g of CaCl2. To calculate the enthalpy change per mole of CaCl2, we need to convert grams to moles:

moles of CaCl2 = 7.51 g / 110.98 g/mol = 0.0676 mol

Therefore, the enthalpy change per mole of CaCl2 is:

ΔH/mol = q / moles of CaCl2 = 4447 J / 0.0676 mol = 65720 J/mol = 65.72 kJ/mol

So the enthalpy change per mole of CaCl2 is 65.72 kJ/mol.

The alkanes will react with halogens in photochemical reactions to produce haloalkanes.

1. What is a photochemical reaction?

2.Use the formation of chloromethane from methane and chlorine in the presence of UV light, to
explain the three stages involved in these photochemical reactions.

3.Give the equation for the overall reaction.

Answers

Answer:

Explanation:

A photochemical reaction is a chemical reaction that occurs due to the absorption of light energy. These reactions typically require high-energy radiation, such as ultraviolet or visible light, to initiate the reaction.

The three stages involved in the photochemical reaction between methane and chlorine to form chloromethane are:

i) Initiation: Chlorine molecules absorb high-energy UV radiation, which causes the chlorine bond to break homolytically, producing two chlorine radicals. This process requires energy and is endothermic.

Cl2 + energy (UV) → 2Cl•

ii) Propagation: The chlorine radical attacks a methane molecule, breaking the C-H bond and producing a methyl radical and HCl. The methyl radical then reacts with another chlorine molecule, producing another chlorine radical and chloromethane. The chlorine radical then continues to react with more methane molecules, propagating the reaction.

Cl• + CH4 → •CH3 + HCl

•CH3 + Cl2 → CH3Cl + Cl•

iii) Termination: In the termination stage, radicals combine to form products, which stops the propagation of the reaction. For example, two methyl radicals can combine to form ethane, or a chlorine radical and a methyl radical can combine to form methyl chloride.

•CH3 + •CH3 → C2H6

•CH3 + Cl• → CH3Cl

The overall reaction for the formation of chloromethane from methane and chlorine in the presence of UV light is:

CH4 + Cl2 + UV light → CH3Cl + HCl

FILL IN THE BLANK.If a neutral acid donates a proton, the conjugate base will have a charge of _______. - Type both an integer and a sign for your answer.

Answers

The conjugate base of a neutral acid that donates a proton will have a charge of -1.

When a neutral acid donates a proton, it is undergoing a process called deprotonation, meaning it has lost a proton from its molecular structure. In this reaction, the neutral acid becomes an anion (negatively charged ion) and the proton is picked up by the base, which is then referred to as the conjugate base of the acid. The conjugate base will have a charge of -1 because it now has one extra electron relative to the original neutral acid.
To illustrate this reaction, consider acetic acid (CH3COOH) donating a proton to a base. When the acid donates a proton, it becomes an anion, CH3COO-, and the base, which has gained a proton, is the conjugate base and has a charge of -1.
In summary, when a neutral acid donates a proton, the conjugate base will have a charge of -1.

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It is advantageous for a predator to prey exclusively on a single prey species

Answers

Answer: It is not necessarily advantageous for a predator to prey exclusively on a single prey species, as this can limit their options and make them vulnerable if the population of that prey species declines or becomes extinct. Predators that are more flexible and able to switch between different prey species may be better equipped to survive and thrive in changing environments.

However, there are some advantages to specializing in a single prey species. For example, a predator that is well adapted to hunting a particular prey species may be more efficient and successful at capturing and consuming that prey, which could provide a reliable source of energy. Additionally, if the predator and prey have co-evolved, the predator may have adaptations that specifically allow it to exploit the weaknesses or vulnerabilities of its prey, giving it an advantage over predators that are less specialized.

THEORY 1. illustrate the formation of the Compound AIC 13 Electron dot representation. ​

Answers

The electron representation shows the electrons in the atoms as dots as in the image attached.

What is electron dot representation?

An electron dot representation, also known as a Lewis dot structure or electron dot diagram, is a way of representing the valence electrons of an atom using dots around the symbol of the element.

Valence electrons are the outermost electrons of an atom, and they play an important role in chemical bonding. The electron dot representation shows the valence electrons as dots around the symbol of the element, with each dot representing one valence electron.

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If 25 grams of sugar dissolves into 150 grams of water, what is the new weight of the liquid?

Answers

Answer:

175 grams

Explanation:

25+150=175

175 grams

Straw like organ used to intake for and water or dispose of waste

Answers

A tube is the term used to describe the straw-like organ utilized by both plants and animals to consume food and water or to eliminate waste.

What is tube?

A hollow, cylindrical structure that is often present in living things is referred to as a tube. Many biological structures, such as blood veins, intestines, respiratory tracts, and the reproductive system, contain tubes. Many biological functions, including the passage of nutrients, the exchange of gases, and the removal of waste materials, depend on tubes.

These tubes are referred to as xylem and phloem in plants. While the phloem moves sugars and other nutrients from the leaves to other parts of the plant, the xylem is in charge of moving water and minerals from the roots to the rest of the plant.

Animals have many species-specific tube-like organs in charge of intake and waste elimination. Mammals, for instance, have a sophisticated digestive system that consists of the anus, esophagus, stomach, and intestines. Together, these organs help the body digest food, extract nutrients, and get rid of waste.

Generally, tubes or channels are essential for both plant and animal life because they let them take in the substances they need and let waste out.

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Calculate number of atoms in 30g Na

Answers

Answer:

The molar mass of Na is 22.99 g/mol (rounded to two decimal places).

To calculate the number of atoms in 30 g Na, we first need to convert the mass to moles using the molar mass:

moles of Na = 30 g / 22.99 g/mol = 1.304 mol (rounded to three decimal places)

Next, we can use Avogadro's number, which tells us the number of particles (atoms, molecules, etc.) in one mole of a substance. Avogadro's number is approximately 6.02 x 10^23 particles per mole.

So, to find the number of atoms in 1.304 moles of Na:

number of atoms = 1.304 mol x (6.02 x 10^23 atoms/mol) = 7.854 x 10^23 atoms

Therefore, there are approximately 7.854 x 10^23 atoms in 30 g Na.

Which transition metal can form both a high and low spin complex? Zn2+, Cu2+, Mn3+, Ti2+

Answers

Answer: Manganese

Explanation:

With titanium, it only has two d electrons, so it can't form different high and low spin complexes. It doesn't matter because it will never fill the higher-energy orbitals. The total spin state turns out to be +1 (two unpaired d electrons, no matter what). Therefore, manganese will form both a high and low spin complex.

Which of the following are things to avoid during this column chromatography experiment? Choose all that apply.

Answers

To ensure successful column chromatography, you should take care to avoid introducing too much solvent, adding too much sample, not allowing enough time, not adjusting the pH of the eluent, using a column that is too long, not allowing the column to equilibrate, and using a packing material that is too coarse.

The following should be avoided during a column chromatography experiment:
1. Introducing too much solvent at once - this can cause flooding and may affect the separation.
2. Adding too much sample to the column - this can lead to inefficient separation.
3. Not allowing enough time for the chromatography to run - this can lead to incomplete separation.
4. Failing to adjust the pH of the eluent to match the sample - this can lead to poor resolution.
5. Using a column that is too long - this can lead to band broadening and poor separation.
6. Not allowing the column to equilibrate before running the sample - this can lead to poor resolution.
7. Using a column with a packing material that is too coarse - this can lead to inefficient separation.
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The speed of sound in a solid medium is 15 times greater than that in air. If the frequency of a wave in the solid is 87 KHz, then what is the wavelength? ( The speed of sound in air is 344 m/s.) m

Answers

The wavelength of the sound in the solid medium, given that the speed of the sound in the solid is 15 times greater than that in air is 0.06 m

How do i determine the wavelength?

The wavelength of a wave is defined by the following formular:

Velocity (v) = wavelength (λ) × frequency (f)

v = λf

The following data were obtained from the question:

Speed of sound wave in air (c) of  = 344 m/sSpeed of sound in solid medium (v) = 15 × c = 15 × 344 = 5160 m/sFrequency (f) = 87 KHz = 87 × 1000 = 87000 HzWavelength (λ) = ?

Velocity (v) = wavelength (λ) × frequency (f)

5160 = wavelength × 87000

Divide both sides by 87000

Wavelength = 5160 / 87000

Wavelength = 0.06 m

Therefore, we can conclude that the wavelength is 0.06 m

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a sealed vessel, containing NO2 and CO2 gases has a total pressure of 2558g mmHg. what is the partial pressure (in mmHg) if the partial pressure of CO2 is 795 mmHg

Answers

The partial pressure (in mmHg) if the partial pressure of CO2 is 795 mmHg is given as 1763 mmHg.

How to solve for the partial pressure

To find the partial pressure of NO2, we can use the formula:

total pressure = partial pressure of NO2 + partial pressure of CO2

We know that the total pressure is 2558 mmHg, and the partial pressure of CO2 is 795 mmHg. Plugging these values into the formula, we get:

2558 mmHg = partial pressure of NO2 + 795 mmHg

To solve for the partial pressure of NO2, we can subtract 795 mmHg from both sides:

2558 mmHg - 795 mmHg = partial pressure of NO2

This gives us:

1763 mmHg = partial pressure of NO2

Therefore, the partial pressure of NO2 is 1763 mmHg.

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Each of the properties that follow is a characteristics of the carbon atom. in each case, indicate how the property contributes to the role of the carbon atom as the most important atom in biological molecules.
a. the carbon atom has a valence of four.
b. the carbon-carbon bond has a bond energy that is above the energy of photons of light in the visible range(400-700)
c. carbon is one of the lightest elements to form a covalent bond.
d. carbon can form single, double and triple bonds.
e. the carbon atom is a tetrahedral structure.

Answers

Carbon's unique properties such as having a valence of four, the ability to form various types of bonds including double and triple bonds, and its tetrahedral structure.

What are the properties of carbon bonds?

a. The carbon atom's valence of four enables it to form up to four covalent bonds with other atoms, allowing for the formation of diverse organic molecules. This property makes carbon the backbone of many biological molecules, including carbohydrates, lipids, proteins, and nucleic acids.

b. The high bond energy of carbon-carbon bonds makes them stable and resistant to breaking under normal physiological conditions, contributing to the stability of biological molecules. This property allows for the formation of complex macromolecules, such as enzymes and DNA, which are essential to life.

c. Carbon's relatively low atomic weight allows it to form strong covalent bonds without adding significant mass to the molecule. This property is essential for the formation of large and complex biological molecules, which require many carbon atoms to function properly.

d. The ability of carbon to form single, double, and triple bonds allows for the formation of diverse molecular structures, including cyclic structures and branching chains. This property contributes to the diversity of organic molecules found in living organisms, allowing for the creation of molecules with specific functions.

e. The tetrahedral structure of the carbon atom enables it to form strong and stable bonds with other atoms while maintaining a relatively stable geometry. This property is essential for the formation of complex three-dimensional structures in proteins and other biological molecules, allowing them to perform specific functions within cells.

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Given the equilibrium constants for the equilibria, 2NH4+(aq) + 2H2O(l) <-->2NH3(aq) + 2H3O+(aq); Kc = 3.24 x 10^-19 CH3COOH(aq) + H2O(l) <--> CH3COOH (aq) + H3O+(aq); Kc = 1.75 x 10^-5 determine Kc for the following equilibrium. CH3COOH(aq) + NH3(aq) --> CH3COOH (aq) + NH4+(aq)

Answers

Given the equilibrium constants for the equilibria, Kc for the following

equilibrium is 3.06 × 10⁴

What is equilibrium constant ?

A chemical reaction's equilibrium constant is the value of its reaction quotient at chemical equilibrium, a state attained by a dynamic chemical system after a sufficient amount of time has passed in which its composition has no measurable tendency to change further. The equilibrium constant is independent of the initial analytical concentrations of the reactant and product species in the mixture for a given set of reaction conditions. As a result, given the initial composition of a system, known equilibrium constant values can be used to determine the system's composition at equilibrium. Temperature, solvent, and ionic strength, for example, can all influence the value of the equilibrium constant.

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is CF3Cl a polar or non-polar molecule?

Answers

Answer: Polar

Explanation: This is because if you look up the Lewis Dot structure of this specific molecule, it will have some net dipole moment, which makes it polar.

It can be considered that when a molecule does have some net dipole moment, it is polar.

So, yes CF3Cl is polar.

CF₃Cl, also known as chlorotrifluoromethane, is a polar molecule.

To determine the polarity of a molecule, consider the individual bond polarities and the molecular geometry.

In CF₃Cl, there is a difference in electronegativity between carbon (C) and chlorine (Cl), as well as between carbon and fluorine (F). Chlorine and fluorine are more electronegative than carbon, meaning they have a greater ability to attract electrons toward themselves.

The C-Cl bond and the C-F bonds in CF₃Cl are polar bonds due to the electronegativity difference. The Cl and F atoms pull the shared electrons towards themselves, creating partial negative charges on those atoms and partial positive charges on the carbon atom.

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which one of the following elements will combine with chlorine in a 1:2 ratio to give a formula of xcl 2 ? f al c mg na

Answers

Answer: the answer is Mg

Explanation: Trust me

how many moles of CaO will form if 10.0 moles of CO2 are produced

Answers

The balanced chemical equation for the reaction that forms CaO and CO2 is:

CaCO3(s) → CaO(s) + CO2(g)

According to the equation, 1 mole of CaCO3 produces 1 mole of CaO and 1 mole of CO2.

Therefore, if 10.0 moles of CO2 are produced, it means that 10.0 moles of CaO are also produced since the reaction stoichiometry is 1:1.

So the answer is 10.0 moles of CaO.

A sample of a gas occupies 460 ML at 70.0 degree celcius and 1.00 atmosphere. At what temperature would the gas occupy 650 ML at the same pressure

Answers

approximately 210.92°C to occupy a volume of 650 mL at 1.00 atm pressure.

At the same pressure of 1.00 atmosphere, the gas would occupy 650 mL at a temperature of approximately 212.33 degrees Celsius.

To solve this problem, we use combined gas law equation:

(P₁ × V₁) / T₁ = (P₂ × V₂) / T₂

Where:

P₁ = Initial pressure

V₁ = Initial volume

T = Initial temperature

P₂ = Final pressure (same as initial pressure)

V₂ = Final volume

T₂ = Final temperature

Given:

P₁ = P₂ = 1.00 atm (pressure remains constant)

V₁ = 460 mL

T₁ = 70.0 degrees Celsius (converted to Kelvin)

V₂ = 650 mL

First, let's convert the initial temperature to Kelvin:

T₁(K) = T₁(°C) + 273.15

T₁(K) = 70.0 + 273.15

T₁(K) = 343.15 K

Now we plug in the values into the combined gas law equation and solve for T₂

(1.00 × 460) / 343.15 = (1.00 × 650) / T₂

Simplifying the equation:

460 / 343.15 = 650 / T₂

Cross-multiplying and solving for T₂

460 × T₂ = 650 × 343.15

T₂ = (650 × 343.15) / 460

Calculating T₂

T₂ = 485.48 K

Now, let's convert the final temperature from Kelvin back to degrees Celsius:

T₂(°C) = T₂(K) - 273.15

T₂(°C) = 485.48 - 273.15

T₂(°C) = 212.33°C

Therefore, at the same pressure of 1.00 atmosphere, the gas occupied 650 mL at a temperature of approximately 212.33 degrees Celsius.

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Identify the strongest acid


Select one:

a. H2O

b. H2Se

c. H2S

d. H2Te

Answers

Answer:

H2Te

Explanation:

Hydrogen telluride is the strongest acid among the options above.

4. What volume, in cm', of 0. 100 moldm³ H₂SO, will produce an acid salt using 50.00cm³ of 0.200 moldm³ KOH solution? -3 C 75.00 D. 100.00 A. 25.00 B. 50.00 C 75.00​

Answers

Answer:

50.00 cm³

Explanation:

Relevant formula:

n = V × c

n = number of moles (mol)

V = volume (dm³)

c = concentration (mol/dm³)

1. Work out moles of KOH

V = 50cm³ = 0.05dm³

Note: remember to convert to the right units (1 dm³ = 1000cm³)

c = 0.2

n = 0.05 × 0.2

n = 0.01

2. Use balanced reaction equation to find the moles of H2SO4

c = 0.1

H2SO4 + 2KOH --> K2SO4 + 2H2O

Ratio of KOH to H2SO4:

2 : 1 (--> 1 is ½ of 2)

If we have 0.01 moles of KOH therefore:

0.01 : x

x = 0.005 (i.e. ½ of 0.01)

3. Calculate volume of H2SO4

n = V × c

0.005 = V × 0.1

V = 0.005 ÷ 0.1

V = 0.05

This reaction will take 0.05 dm³ of H2SO4, or 50 cm³

The chemical potential energy of bond A is greater than the chemical potential energy of bond B. Which statement best explains this observation?(1 point)a-The atoms in bond A are larger than the atoms in bond B.b-The atoms in bond A have fewer bonds between them than the atoms in bond B.c-The atoms in bond A are held more tightly together than the atoms in bond B.d-The atoms in bond A are farther apart than the atoms in bond B.

Answers

If the chemical potential energy of bond A is greater than the chemical potential energy of bond B, then this means that atoms in bond A are held more tightly together than the atoms in bond B. So option c. is correct.

What is chemical potential energy?

Chemical potential energy is the energy stored in the chemical bonds of matter. These reactions involve breaking chemical bonds between molecules and reforming them into new configurations. Excess energy is released and released as heat or work.

Dynamite is a good example of chemical potential energy. The main component of dynamite is nitroglycerin, a highly unstable substance. Mixing it with diatomaceous earth increases its stability and makes it less likely to explode when subjected to physical impact. When ignited, nitroglycerin explodes rapidly, releasing large amounts of nitrogen and other gases along with enormous amounts of heat.  

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The complete question is as follows:

The chemical potential energy of bond A is greater than the chemical potential energy of bond B. Which statement best explains this observation?(1 point)

a-The atoms in bond A are larger than the atoms in bond B.

b-The atoms in bond A have fewer bonds between them than the atoms in bond B.

c-The atoms in bond A are held more tightly together than the atoms in bond B.

d-The atoms in bond A are farther apart than the atoms in bond B.

Other Questions
Mary needs to rename her report.txt file to final_report.txt. Which command will allow her to do this?A. ren report.txt final_report.txtB. ren final_report.txt report.txtC. ren final_report.txtD. ren report.txt to final_report.txt country y has a population of 1,500, of whom 375 work 7 hours a day to make 128,000 final goods. country z has a population of 2,200, of whom 880 work 5 hours a day to make 384,000 final goods.a.country y has higher productivity and higher real gdp per person than country z.b.country y has lower productivity but higher real gdp per person than country z.c.country y has higher productivity but lower real gdp per person than country z.d.country y has lower productivity and lower real gdp per person than country z. fill in the blank. sometimes supplier selection is based on___, which means a buyer and a seller agree to purchase each other's goods and services. An organization licensed as a producer business entity based in New York would like to transact insurance in New Jersey. Which of the following is true?- the organization will need to obtain a nonresident business entity license, and its producers will need to obtain nonresident licenses csi inc uses accrual basis accounting. during april, the company recorded sales revenue 50,000 from sales of goods to customers who promised to pay in may. during may, the company received payments from these According to the graphs of the possible outcomes of a competitive firm and a monopoly in the same market, which of the following is a correct statement? Price Price and cost and cost MC PM Pc D MR D Qc Market quantity (a) Competitive Industry QM Qc Market quantity (b) Monopoly as Sole Provider Correct Answer(s) Drag appropriate answer(s) here is the leason for Free the use of deception in social psychological research occurs when the researchers require_____ in their study. group of answer choices a. realistic experimentation b. televised reality c. mundane realism d. experimental realism the sarbanes-oxley act of 2002 is an example of regulation regarding what? compliance service-level agreements privacy documentation parasympathetic innervation of the heart occurs via select one: a. cn x. b. cn iv. c. cn viii. d. cn xii. e. cn vi. Response to political cartoons and photos: Great DepressionMust write in complete sentences and full paragraphs.1. List five historical items in the political cartoons/photos that you think are important or interesting.2. How do these cartoons illustrate about the Great Depression in society?3. Describe the tone/emotion in the political cartoons/photos.4. Name the symbols in the cartoons. What do they mean? How do they convey the cartoons meaning? 5. What are your thoughts and questions about the political cartoons/photos? You mightreflect upon the artwork, the people, the title or other ideas. 2.1.2 Name ONE micro-organism present in B Suppose the systolic blood pressure (in mm) of adult males has an approximately normal distribution with mean =125 and standard deviation =14. Create an empirical rule graph with the following: A title and label for the horizontal axis including units. Vertical lines for the mean and first 3 standard deviations in each direction with numerical labels on the horizontal axis Labels for the areas of the 8 regions separated by the vertical lines as well. Note: This may be hand drawn or computer generated. See the models for desired formats. Now use your graph to answer the following questions. b. About 99.7% of men will have blood pressure between what amounts? ______ and _____ c. What percentage of men will have a systolic blood pressure outside the range 111 mm to 153 mm? which of the following terms refers to the personal disregard of religion, and/or government policy of not favoring one religion? What happens when a gene is expressed? the gene is mutated the gene dies the gene is able to specialize the gene duplicatesexactly The pairing of nitrogenous bases in DNA is specific becauseA. Functional groups on each of the bases form hydrogen bonds with functional groups only one other base.B. Functional groups on each of the bases form covalent bonds with functional groups on only one other base.C. The pairing of DNA strands is antiparallel.D. The pairing of DNA strands is parallel A dolphin was swimming 6 feet below sea level. The number line shows thelocation of the dolphin. It then swam down 3 feet. Describe how to use thenumber line to find the new location of the dolphin.-10-9-8-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10OA. On the number line, move 3 units to the left. End at -9. The dolphinwas 9 feet below sea levelsmOB. On the number line, move 3 units to the right. End at 9. The dolphinwas 9 feet above sea level.OC. On the number line, move 3 units to the left. End at 3. The dolphinwas 3 feet above sea level.OD. On the number line, move 3 units to the right. End at -3. Thedolphin was 3 feet below sea level. You are the administrator for a domain named internal.widgets.com. This domain spans a single site (the Default-First-Site-Name site).You want to configure password and account lockout policies that Active Directory domain controllers will enforce. You have created a Group Policy object with the settings you want to apply. Most of the domain controllers are located in the Domain Controllers OU, although you have moved some domain controllers to a sub-OU called Secure Domain Controllers.Where should you link the Group Policy object that you created? DBQ Essay Prompt: The 1920s have been characterized as a decade of economic, social, and cultural change. Evaluate the extent to which the First World War and consumerism affected United States society during this period.1. Circlethe task verb, underlinethe subject, and draw a square aroundeach topic to discuss.2. Rewrite the prompt (without the leading statement) in your own words.DocumentsDocument A:"As a race, we gave the country our best sons to make the supreme sacrifice in order to make the world free from German oppression. These same boys should be willing to make this country free from American oppression against their race. I know they are willing and ready. Some may say thisis madness. If it is, let me reassure them that the entire race must be made, for this is the language they speak today and the only thing they will listen to."Source: Bishop John L. Hurst, "Fight," from The Crisis, the journal of the National Association for the Advancement of Colored People, 1919.What part of the prompt does this document address(underline)? ECONOMIC SOCIAL POLITICALIs this a result of World War I or consumerism and WHY? Direct quotes help the readers understand the author's unique style of writing. TRUE OR FALSE