The molar mass of cu is 63. 5 g/mol. The molar mass of ag is 107. 9 g/mol. What mass, in grams, of ag is produced from a reaction of 31. 75 g of cu? 26. 95 grams 107. 9 grams 215. 91 grams 431. 82 grams.

Answers

Answer 1

The correct answer is 107.9 g of Ag is produced from a reaction of 31. 75 gram of Copper.

How to calculate The Molar Mass?

Molar mass of a substance is the mass in grams of one mole of the compound. A mole is the measurement of the number of things, such as atoms, molecules, and ions, that are present in a substance. Any material has 6.022 x 1023 molecules in a mole, it is known as Avogadro's number . The mole is used to determine the size of the tiniest entities quantitatively, just as we use a standard value to quantify many things, such as 1 dozen = 12 items.

Formula - Molar mass = mass in grams/mole = g/mol

Molar mass of a substance can be calculated as:

Given,

n = W/M, where

W = required mass

M= molar mas

Given chemical reaction is:

Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag

From the stoichiometry of the reaction,

1 mole of Cu = produce 2 moles of Ag

Given mass of Cu = 31.75g

Molar mass of Cu = 63.5g/mol

Moles of Cu = 31.75g / 63.5g/mol = 0.5 moles

0.5 moles of Cu = produce 2×0.5 = 1 mole of Ag

Molar mass of Ag = 107.9g/mol

Required mass of Ag = 1mol × 107.9g/mol = 107.9 g

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Related Questions

A set of chemistry exam scores are normally distributed with a mean of 707070 points and a standard deviation of 555 points. What proportion of exam scores are between 686868 and 737373 points? you may round your answer to four decimal places.

Answers

The proportion of exams scores between 68 and 73 points is 38.09%.

First, we need to calculate the z-score of both points.

Formula for z-score is:

z-score = (x – mean) / SD

In this case, given that:

Mean = 70

SD = 5

So, for exam score 68 points:

z-score = (68 – 70) / 5

= –2 / 5

= –0.4

And, for exam score 73 points:

z-score = (73 – 70) / 5

= 3 / 5

= 0.6

Thus, the probability:

P (68 < x < 73) = P (–0.4 < z < 0.6)

By using the z-table:

P (–0.4 < z < 0.6)

= (0.5 – 0.3446) + (0.7258 – 0.5)

= 0.3809

= 38.09%

Hence, the proportion of exams scores between 68 and 73 points is 38.09%.

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What is the chemical energy - storage molecule produced from photosynthesis ?

Answers

Photosynthesis is essential among most life on the planet. Plants, algae, as well as some kinds of bacteria carry out the process by capturing solar energy to create oxygen (O2) as well as chemical energy stored within glucose (a sugar).

Adenosine triphosphate (ATP), the primary energy-storing molecule within living things, transforms solar energy into chemical energy. The chemical energy required to drive further metabolic reactions would then be provided by ATP, which has been carried throughout the chloroplast.

The thylakoid membrane is the site of light-dependent processes. They need light to function, and their overall conversion of water molecules towards oxygen produces ATP molecules through ADP and Pi as well as NADPH molecules out from reduction of NADP+.

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Identify the least reactive element from the following.A816​ XB1020​ XC1123​ XD919​ X

Answers

1020 X is the least reactive element. The least reactive elements are the inert gases. Inert gases have an atomic number of 2, 10, 18, 36, 54, and 86.

What does an atomic number mean?

The quantity of protons in an atom's nucleus is known as the atomic number. The amount of protons determines an element's identity. 

The atomic number is where?

The number of protons in an atom's nucleus, that is also equivalent to the amount of electron inside an uncharged atom, is indicated by the word "atomic number," which is typically represented by the letter Z. The neutron number is a representation of the amount of neutrons (N).

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The correct question is

Identify the least reactive element of the following?

A) 168X

B) 2010X

C) 2311X

D) 199X

What is the percent composition of carbon in sucrose?

What is the percent composition of hydrogen in sucrose?

What is the percent composition of oxygen in sucrose?

Sucrose = C12H22O11, Molar Mass = 12.01(12)+1.01(22)+16.00(11) = 342.34 g/mol

Answers

Answer:

Percentage Composition from Formulas. A more complex example is sucrose (table sugar), which is 42.11% carbon, 6.48% hydrogen, and 51.41% oxygen by mass.

Explanation:

Complete the table below by writing the symbols: ionic compound cation anion NaCl Na^+ Cl^- CrCl4 Cr^4+ Cl^- NH,Br NΗ4^+ Br^- Cu(OH)2 Cu^2+ OH^- Cos

Answers

Ionic compound Cation Anion

NaCl Na^+ Cl^-

CrCl4 Cr^3+ Cl^-

NH4Br NH4^+ Br^-

Cu(OH)2 Cu^2+ OH^-

CoS Co^2+ S^2-

Please note that in CrCl4 the cation is Cr^3+ not Cr^4+

In the table above, the first compound is NaCl. The sodium cation has a positive charge of +1 and the chloride anion has a negative charge of -1, which gives the compound a neutral charge.

The second compound is CrCl4. The Chromium cation has a positive charge of +3 and the chloride anion has a negative charge of -1, which gives the compound a neutral charge as well.

The third compound is NH4Br. The ammonium cation has a positive charge of +1 and the bromide anion has a negative charge of -1, which gives the compound a neutral charge.

The fourth compound is Cu(OH)2. The Copper cation has a positive charge of +2 and the hydroxide anion has a negative charge of -1, which gives the compound a neutral charge.

Finally, the fifth compound is CoS. The Cobalt cation has a positive charge of +2 and the sulfide anion has a negative charge of -2, which gives the compound a neutral charge.

It's important to note that the charge of the cations and anions must match for the compound to be neutral, if not the compound will have a net charge.

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What balanced chemical reactions does carbon engineering involve?
What are some examples of balanced chemical reactions that involves carbon engineering?

Answers

The carbon engineering technologies forward the carbon dioxide capturing methods. The first step involved in the air contactor is given below:

[tex]\rm CO_{2} + 2 KOH \rightarrow H_{2}O + K_{2}CO_{3}[/tex]

What is carbon  engineering ?

Nowadays evolution of greenhouse gases such as carbon dioxide is causing serious issues such as global warming. Industries and factories are uncontrollably release these gases to the atmosphere.

Carbon engineering designs the techniques for direct capture of carbon dioxide. The methods include an air contactor with the reaction given above and a pelletizer where, the KOH and calcium carbonate produces calcium hydroxide.

A calcinator decomposes the calcium carbonate forming the carbon dioxide  which is  captures.

[tex]\rm CaCO_{3} \rightarrow CO_{2} + CaO[/tex]

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Which gas is a molecule with 14 protons?

Answers

Nitrogen (N2) is a molecule that has 14 protons.

Nitrogen is a colorless, odorless, and tasteless gas that makes up about 78% of the Earth's atmosphere. Nitrogen is an important component of many compounds, including proteins, DNA, and RNA, and is essential for life on Earth.

Nitrogen gas is also used in a variety of industrial applications, including the production of fertilizers, explosives, and the preservation of food. Nitrogen is a non-metallic, diatomic gas that exists in two stable isotopes, 14N and 15N.

Nitrogen gas is relatively unreactive, due to the strong triple bond between the two nitrogen atoms in a nitrogen molecule (N2). However, under certain conditions, such as high temperatures or the presence of catalysts, nitrogen can react with other elements to form compounds such as ammonia (NH3), nitric oxide (NO), and nitrous oxide (N2O).

In the Earth's atmosphere, nitrogen plays a key role in the nitrogen cycle, a process by which nitrogen is converted between different chemical forms. Nitrogen gas is converted to ammonia by nitrogen-fixing bacteria, and then to nitrite and nitrate by microorganisms in the soil.

Overall, Nitrogen is a very important element in our planet and many industrial processes.

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4. If 13.34 g of an unknown substance has a -40.8 J of heat in cooling from 50°C to 43°C,
what is the specific heat of the unknown?

Answers

Answer: c (specific heat capacity) = 0.4369243949 J/g *C

Or with Significant digits: 0.44 ( 2 sig digs because of temperature)

Explanation: So this is a simple calorimetry question, so you have to consider this formula, ΔH = -Q  and since Q = mcΔt || Therefore you get this equation ΔH = - (mcΔt). So you want to solve for c, now rearrange. Once you do that, you will end up with c = - (ΔH/ -m · -Δt)

Now Plug in the numbers

Then you will get 0.44!

Hope that helped and remember significant digits! Good luck!

How many particles are in 2.5 moles of Argon, Ar?

Answers

Answer: 2.5 moles of Argon, Ar contains 15.055 x 10^23 particles. ✅

Explanation:

To find the number of particles in 2.5 moles of Argon, we can use the Avogadro's number. Avogadro's number is the number of atoms, ions or molecules in one mole of a substance. It is defined as 6.022 x 10^23 particles per mole.

To convert moles to particles, we can multiply the number of moles by Avogadro's number.

2.5 moles x 6.022 x 10^23 particles/mole = 15.055 x 10^23 particles

So, 2.5 moles of Argon, Ar contains 15.055 x 10^23 particles.

What do covalent bond and organic compound have in common?

Answers

Answer:

Covalent bonds are much more common in organic chemistry than ionic bonds. A covalent bond consists of the simultaneous attraction of two nuclei for one or more pairs of electrons. The electrons located between the two nuclei are bonding electrons.

Explanation:

Atom Valence

Oxygen 2

Sulfur 2

Nitrogen 3

Carbon 4

Please help
Solid sodium reacts with fluorine gas.
The theoretical yield of the reaction is calculated as 28.2 g NaF.
25.9 g NaF were recovered after the reaction.
What is the percent yield of for the reaction?
2Na + F2 → 2NaF [ ? ]%

Answers

Considering the definition of percent yield, the percent yield for the reaction is 91.84%.

Definition of percent yield

The percent yield is the ratio between the actual yield and the theoretical yield expressed as a percentage.

The percent yield is calculated as:

percent yield= (actual yield÷ percent yield)×100%

where:

The actual yield is the amount of product obtained from a chemical reaction.The theoretical yield is the amount of product that is obtained from the stoichiometric equation using the limiting reagent to determine the product.

Percent yield in this case.

In this case, you know:

Actual yield= 25.9 gTheoretical yield= 28.2 g

Replacing in the definition of percent yield:

percent yield= (25.9 g÷ 28.2 g)×100%

Solving:

percent yield= 91.84%

Finally, the percent yield is 91.84%.

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Neon has three naturally occurring isotopes. In a sample of neon, 80.75% of the atoms are Ne-20, which is an isotope of neon with 10 neutrons and a mass of 19.99 AMU. Another 0.25% of the atoms are Ne-21, which is an isotope of neon with 11 neutrons and a mass of 20.99 AMU. The final 19% of the atoms are Ne-22, which is an isotope of neon with 12 neutrons and a mass of 21.99 AMU. What is the atomic mass of neon? Show your work.

Answers

The average atomic mass of neon is derived from the isotopic masses and percentage abundance. The average atomic mass of neon is 20.37 amu.

What are isotopes?

Isotopes are atoms of same element with different atomic mass numbers. Almost all elements have two or more isotopes but not all of them are stable in nature.

The average atomic mass can be calculated from the isotopic mass and and percentage abundance as follows:

atomic mass = ∑ (isotopic mass × %abundance /100 )

Apply the isotopic mass and abundance of all isotopes given as follows:

atomic mass of neon = (80.75/100 ×19.99 amu) +  (0.25/100 ×20.99 amu)  +  (19/100 × 21.99 amu) = 20.37 amu.

Therefore, the atomic mass of neon is 20.37 amu.

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A chemical reaction has reached equilibrium when
a. the concentrations of reactants and products are equal,
b. the rate of the forward reaction equals the rate of the reverse reaction,
c. all reactants have been converted to products,
d. all products have been removed from the reaction mixture.

Answers

A chemical reaction has reached the equilibrium when b.  the rate of the forward reaction equals the rate of the reverse reaction.

The chemical reaction is said to be in the equilibrium when the rate of the forward reaction is equals to the rate of the backward reaction. . The equilibrium is the state of the balance. The chemical equilibrium is the state of the reaction when the the rates of the forward and the rates of the backward reaction s are equal.  

             forward

A   +   B      ⇄       C

             backward

The chemical equilibrium are of the two types :

Homogeneous EquilibriumHeterogeneous Equilibrium

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Help me with this chemistry question please and thank you

Answers

Yes it is True.

Because Zinc(Zn) is Highly reactive than Hydrogen(H) that is why Zn can easily replace Hydrogen in HCl and form ZnCl2.

Bacterial fermentation of sugars usually results in results in ___________ end products. end products whereas breakdown of proteins and amino acids the formation of __________

Multiple Choice

O acidic........alkaline

O acidic.....alcoholic

O alkaline.......sulfide

O alcohol........acidic

O alkaline........acidic

Answers

In most cases, acidic byproducts of bacterial fermentation of carbohydrates are produced. while proteins & amino acids break down, alkaline is produced as an end result.

What outcomes from bacterial fermentation?

SCFAs and fuel dioxide, methane, and hydrogen—are the byproducts of fermentation. Colonic bacteria also digest proteins and poorly absorbed starches from the upper GI tract in additional to nonstarch polysaccharides.

Where does fermentation of bacteria take place?

All animals' gastrointestinal tracts undergo fermentation, although the degree of fermentation varies depending on the number of microbes present, which is typically highest inside the large bowel.

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Model 1 - Chemical Reactions
CL + 2NaBr
2(g)
(aq)
2NaCl + Br
(aq)
1. Label the reactants and the products.
2. What does the number 2 in Cl, mean?
2
Click to add text
3. What does the 2 in front of 2NaBr mean?
Click to add text
Reactant
2(1)
Product

Answers

1. 1st reaction:reactant, 2nd reaction:product.

2. 2 in cl2 means that chlorine is diatonic

3. 2 in front of NaBr shows that there are 2 moles of NaBr

Draw the Lewis structure of SF5+ on paper.

(a) What is the total number of electron pairs in this Lewis structure?

(b) What is the number of nonbonding electron pairs on the central atom?

(c) What is the geometry of the electron pairs around the central atom?

(d) What is the geometry of the molecule?

Answers

SF holds ten elections in the central Splunk atam In a tigenal two - tier structure structure, this indicates there are 5 electron pairs annanged. Two are exidl and three of a Fluonne are equatonal.

What are electron pairs used for?

Each atom in a bond between two atoms will share 1 electron. The electrons taking part in this connection are referred to as the electron bond pairs. Example: All four hydrogen atoms in the methane molecule form a bond link with the central carbon atom.

What do lone pair and an electron pair mean?

Bond pairs refer to the shared electron pairs that exist between the bound atoms. Bonding may not involve all of the valence electrons. Lone pair of electrons are defined as electron pairs without a partner in a bond. For instance, there really are seven bond pairings but no lone pair in C2H6 (ethane).

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Give the hybridization for the O in OF 2.
a. sp(^3)d
b. sp(^3)d(^2)
c. sp^3
d. sp^2
e. sp

Answers

It is a useful ability to be able to rapidly assess whether the atom is the hybridization again for O in OF 2, as the hybridization hypothesis is sometimes perceived as a convoluted and lengthy notion. sp^2

What does hybridization look like in practice?

The process chemical hybridization known as sp3 hybridization involves the mixing and recasting of the 1s and 3p electron shells of the same element to create new hybrid orbitals with the same energy, symmetric, and fixed orientation in space. The molecule of methane is one example.

How and why is hybridization important?

Atomic orbitals are thought to combine to generate freshly hybridized orbitals through the process of hybridization, which then affects the geometry of molecules and their bonding characteristics. Additionally, hybridization expands the valence

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The is all
the wavelengths of electromagnetic radiation.​

Answers

• Radio waves

• Microwaves

• Infrared radiation

• Visible light

• Ultraviolet light

• X-rays

• Gamma rays

Electromagnetic radiation can be categorized into seven different groups. It consists of radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays, and gamma rays.

The wavelengths of each of them are as follows:

Gamma rays: < 10⁻¹² m. It is usually used in the medical field

X-rays: 1 nm- 1 pm. It is used in a number of fields like medicine and airport security.

Ultraviolet: 400 nm- 1 nm. Sun is the main source of UV rays

Visible light: 750 nm- 400 nm. This is visible to our eyes.

Infrared light: 25 μm – 2.5 μm. It is mainly used in night vision goggles.

Microwaves: 1 mm – 25 μm. It is used in microwave ovens and other cooking utensils.

Radio waves: > 1 mm. It captures the waves transmitted by radio stations

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The following model was used to show a molecule of methane, or CH4. Describe the number and type of each component of the molecule.

Answers

There is only a single carbon atom and four hydrogen atoms in the model.

What is a model?

In science, when we talk about a model, we know that what we mean is a representation. It is actually something that stands in for another. We can be able to use a model as a guide that enables us to be able to visualize what the actual molecule would look like.

We can see that in the compound that has been laid out here, we would have about four atoms that are from hydrogen while we would only have one atom from carbon in the compound.

Thus, the blue ball stands for carbon while each of the red balls stand for hydrogen atoms in the model shown.

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Complete the following sentences on the acid-base properties of salts.

1. A salt consisting of the conjugate base of a ____________ and conjugate acid of a ____________ will be neutral since neither will react with water.

2. The salt consisting of the conjugate base of a ____________ and the conjugate acid of a ____________ will be acidic since the conjugate ____________ of a ____________ is acidic.

3. A salt consisting of the conjugate base of a ____________ and the conjugate acid of a ____________ will be basic since the conjugate ____________ of a ____________ is basic.

4. A salt consisting of the conjugate base of a ____________ and conjugate acid of a ____________ can be either acidic or basic depending on the relative Ka and Kb of the respective ions.

Word Bank: Weak base, Weak acid, Strong base, Base, Strong acid, Acid

Answers

The acid - base properties of the salt :'

1) Strong acids and strong base

2) Strong acid , weak base, acid and weak acid

3) Weak acid, strong base , base and the weak acid

4) Weak acid and the weak base

1) A salt consisting of the conjugate base of a strong acid and conjugate acid of a strong base will be neutral since neither will react with water.

2) The salt consisting of the conjugate base of a strong acid and the conjugate acid of a weak base will be acidic since the conjugate acid of a weak acid is acidic.

3) A salt consisting of the conjugate base of a weak acid and the conjugate acid of a strong base will be basic since the conjugate base of a weak acid is basic.

4) A salt consisting of the conjugate base of a weak acid and conjugate acid of a weak base can be either acidic or basic depending on the relative Ka and Kb of the respective ions.

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When NH3(g) reacts with O2(g) to form N2O(g) and H2O(l) , 342 kJ of energy are evolved for each mole of NH3(g) that reacts.

Answers

Since 342 kJ of energy are evolved for each mole of NH₃(g), and there are 2 moles of NH₃(g) in the balanced equation, the heat evolved will be2 × 342 kJ = 684 kJ. By convention, when heat is evolved, it takes a negative sign. The balanced thermochemical equation is:

2 NH₃(g) + 2 O₂(g) ⇒ N₂O(g) + 3 H₂O(l)   ΔH° = -684 kJ

What is NH3?Ammonia occurs naturally and is produced by human activity. It is an important source of nitrogen which is needed by plants and animals. Bacteria found in the intestines can produce ammonia. Ammonia is a colorless gas with a very distinct odor. This odor is familiar to many people because ammonia is used in smelling salts, many household and industrial cleaners, and window-cleaning products. Ammonia gas can be dissolved in water. This kind of ammonia is called liquid ammonia or aqueous ammonia. Once exposed to open air, liquid ammonia quickly turns into a gas. Ammonia is applied directly into soil on farm fields, and is used to make fertilizers for farm crops, lawns, and plants. Many household and industrial cleaners contain ammonia.

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In the preindustrial era, settlements were more likely to be near sources of surface water than in the industrial era.a. True b. False

Answers

Pre-industrial villages were more likely to be found close to surface water sources than industrial ones were. is Valid

Why has groundwater increased?

The growing population is the main cause of the growth in groundwater use. The increased usage of groundwater is a result of both urbanization and pollution. Groundwater cannot be successfully sourced from contaminated rivers, lakes, or springs. Between pre- and post-industrial eras, groundwater use reduced.

Similar issues arise when water is extracted from the ground quicker than it can be replaced. As a result of pumping, groundwater storage volume is falling in several parts of the United States. The main cause of ongoing groundwater pumping is groundwater depletion. The Ogallala Aquifer is the country's biggest aquifer. The High Plains aquifer system, which extends from Texas to South Dakota, supports a portion of eight different states.

Therefore the correct answer is option b ) true .

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How many grams are in 12 atoms of carbon?

Answers

12 atoms of carbon is equal to 12 x 12.011 grams, or 144.132 grams.

The atomic mass of carbon is 12.011 g/mol, which means that one mole of carbon contains 12.011 grams. Therefore, to find the mass of 12 atoms of carbon, we need to multiply 12.011 by 12, which equals to 144.132 grams.

This is because 1 mole of any element is equal to 6.022 x 1023 atoms. To calculate the mass of 12 atoms, we need to divide 12 by 6.022 x 1023, which is equal to 1.99 x 10-23 moles.

Once we have this number, we can multiply it by 12.011 to get the mass of 12 atoms of carbon. This gives us the final answer of 144.132 grams for 12 atoms of carbon.

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What does a metal combine with in an
ionic compound?

Answers

Hsudkfjgjjdfhvfhb ghduhc

Consider the following intermediate chemical equations.

3 equations. 1: upper C solid plus upper o subscript 2 gas right arrow upper C upper O subscript 2 gas Delta H 1 equals negative 393.5 kilojoules. 2: 2 upper C upper O gas plus upper O subscript 2 gas right arrow 2 upper C upper O subscript 2 gas Delta H 2 equals negative 566.0 kilojoules. 3: 2 upper H subscript 2 upper o gas right arrow 2 upper H subscript 2 gas plus upper O subscript 2 gas delta H 3 equals 483.6 kilojoules.

The overall chemical equation is Upper C (s) plus upper H subscript 2 upper O (g) right arrow upper C upper o (g) plus upper H subscript 2 (g).. To calculate the final enthalpy of the overall chemical equation, which step must occur?
Reverse the first equation, and change the sign of the enthalpy. Then, add.
Reverse the second equation, and change the sign of the enthalpy. Then, add.
Multiply the first equation by three, and triple the enthalpy. Then, add.
Divide the third equation by two, and double the enthalpy. Then, add.

Answers

Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance. Therefore, 485.9 kJ is the overall enthalpy of the reaction.

What is Enthalpy?

Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.

Reverse the first equation: upper C solid plus upper o subscript 2 gas right arrow upper C upper O subscript 2 gas        ΔH1=-393.5 kJ

Reverse the second equation:2 upper C upper O gas plus upper O subscript 2 gas right arrow 2 upper C upper O subscript 2 gas ΔH2=-566.0KJ

Reverse the third equation: 2 upper H subscript 2 upper o gas right arrow 2 upper H subscript 2 gas plus upper O subscript 2 gas ΔH2=-483.6 kJ

ΔHrxn = 393.5 kJ + 566.0 kJ + (-483.6 kJ)

           = 485.9 kJ

Therefore, 485.9 kJ is the overall enthalpy of the reaction.

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7. The relative atomic mass of lithium is 6.94 and its atomic number is 3. Which one
statement below can be correctly deduced from this information?

A) All ions of lithium contain three electrons.
B) All atoms of lithium contain equal numbers of electrons and neutrons.
C) Some atoms of lithium contain more than three electrons.
D) All atoms of lithium contain three protons.

Answers

Lithium is an alkali metal with the atomic number = 3 and an atomic mass of 6.941 g/mol. All ions of lithium contain three electrons.  

What Is lithium the drug used for?

Lithium is a type of medicine known as a mood stabiliser. It's used to treat mood disorders such as: mania (feeling highly excited, overactive or distracted) hypo-mania (similar to mania, but less severe)

What lithium does to the brain?

At a neuronal level, lithium reduces excitatory (dopamine and glutamate) but increases inhibitory (GABA) neurotransmission; however, these broad effects are underpinned by complex neurotransmitter systems that strive to achieve homeostasis by way of compensatory changes.

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how much heat is needed to raise the temperature of 100 g of water from 10°C to 20°C

Answers

Answer:

Ainsi pour transformer, sous la pression atmosphérique, une masse de 1 kg d'eau pris à 20 °C en vapeur, l'énergie à fournir est égale à l'énergie fournie pour passer de 20 °C à 100 °C à l'état liquide soit 334 kJ puis à celle requise lors de la vaporisation à 100 °C soit 2256 kJ donc au total 2590 kJ.

Explanation:

an apple with a mass of 0.52 kg is hanging in a tree 3.4 meters above the ground.
how much potential energy does it have

Answers

Answer:

Explanation:
Mass=0.52kg
Gravitational constant g=9.8
Height h=3.4m
Potential Energy(PE)=h*mg
PE=3.4*0.52*9.81
PE=17.344j

What is the lewis structure of I3^(-)?

Answers

The triiodide ion, with its I3- Lewis structure, is a linear anion ion with sp3d hybridization, trigonal bipyramidal geometry, and the acquisition of a linear form.

What makes up an ion?

An ion is an atom or group of atoms with just an electric charge. The word for positive-charged ions is cations. Ions which have a negative surface charge are referred to as anion. The body includes ions of several common substances.

Which definition best fits an ion?

A charged molecule or atom is known as an ion. Because there are more electrons than protons in an atom or molecule, it is charged. Depending upon whether the amount of an atom's electrons is more or less than the number or protons in the atom, an atom can develop a positive charged or a negative charge.

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Which energy-yielding nutrient is the most satiating? a. protein b. carbohydrate c. water d. alcohol e. fat For each of the three potential buyers of oranges, the table displays the willingness to pay for the first three oranges of the day. Assume Allison, Bob, and Charisse are the only three buyers of oranges, and only three oranges can be supplied per day. PLEASE HELP!!! THIS IS TIMED!!! PLEASE HELP ASAP!! How many solutions does this system have?2 x minus 3 y = 10. Negative 4 x + 6 y = negative 20.onetwoan infinite numberno solution Do you think it's possible to remove sodium from your diet completely? why or why not? Describe the two major developments that made it possible for human beings to migrate to the western hemisphere from asia. If sellers expect the price of their product to rise in the future, they are likely to _____ in the near term. increase their demand restrict their demand increase their supply restrict their supply When does a sentence have a parallel structure? what is the solubility of KCI? Which of the following is an arithmetic sequence where a = 9 and d= 7?A) 9, 16, 23, 30, 37, ...B) 0, 9, 18, 27, 36,...C) 7, 16, 25, 34, 43,...D) 0, 7, 14, 21, 28, ... What made howling wolf's drawings different from other ledger artists? multiple choice question. style of figures and animals use of color and pattern the themes presented type of paper used Human memory consists of multiple systems that have the ability to store information for periods of time that range from __________ to __________. Midwestern farmers began specializing in one or two crops and selling their surplus in New England. How did this affect the relationship between Westerners and Northerners?A. Many Westerners felt culturally connected to the NorthB. Many Westerners felt subservient to the SouthC. Many Westerners felt subservient to the NorthD. Many Westerners felt culturally connected to the South Find the median for the scores 91, 69, 71, 82, 71, 95, 87, 74, 71, 89, 89, 95, 72, 75 4 After performing a rapid assessment on an adult patient, youdetermine that they are not breathing, their central pulse is absentand they have no life-threatening bleeding. You recognize that the patient is experiencing: The main constituent of gallstones is cholesterol. Cholesterol may have a role in heart attacks and blood clot formation. Its elemental percentage composition is 83.87% C, 11.99% H, and 4.14% O. It has a molecular weight of 386.64 amu. Calculate its empirical and molecular formulas. organism that must get energy from their environment are classified as? There is a number that if you subtract 9 from it first, and then divide that total by 6, you get 7. What's the number? La nota de Karina en su curso de nivelacin matemtica es 7 veces la cantidad de factores primos que tiene el siguiente polinomio:P (a; b; c) =a(a +b-c) +b(a+ b-c) +c(a +b- c)Hallar la nota que obtuvo. Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 130 to 190 cm and weights of 40 to 150 kg. Let the predictor variable x be the first variable given. The 100 paired measurements yield x= 167.65 cm, y= 81.36 kg, r= 0.309, P-value= 0,002, and y= 106+1.15x. Find the best predicted value of y (weight) given an adult male who is 156 cm tall. Use a 0.10 significance level. A nurse notes late decelerations on the fetal monitor. What priority actions should the nurse take?