Answer:
The metals are to the left of the line except for hydrogen because it is a nonmetal
Explanation:
draw the structure of the product of the enamine formed between cyclohexanone and dimethylamine.
The reaction of cyclohexanone with dimethylamine, in the presence of catalytic amount of an acid forms a compound as shown in the reaction sequence.
When cyclohexanone reacts with dimethyl amine?If water is continually removed throughout the reaction, the chemical that results is typically referred to as an enamine. Salts like dimethylamine hydrochloride, an odourless white solid with a melting temperature of 171.5 °C, are created when dimethylamine reacts with acids.
Methanol and ammonia undergo a catalytic reaction at high pressure and temperatures to generate dimethylamine: (CH3)2NH + 2 H2O = 2 CH3OH + NH3. Dimethylamine is a base for a number of important industrial chemicals. Dimethyl dithiocarbamate, a precursor to zinc bis(dimethyldithiocarbamate) and other compounds used in the sulphur vulcanization of rubber, is produced when it combines with carbon disulfide.
Dimethylamine is the source of the solvents dimethylformamide and dimethylacetamide. It is used as a raw ingredient to make a variety of medications and agrichemicals, including dimefox and diphenhydramine, respectively.
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which of these is the best insulator aluminum,gold,copper, and air
Answer: Air
Explanation: As a metal, aluminum, gold, and copper are all bad insulators and good conductors for heat and electricity. Air in general is a good insulator.
How many grams of Ba(OH)2 are obtained during the reaction of 30 g of BaCl2 and 20 g of NaOH. What substance
is there a surplus and how much? Ar(Ba)-137.3, Ar(Na)=23, Ar(H)=1, Ar(CI)=35.45
The balanced equation for the reaction is BaCl2 + 2NaOH → Ba(OH)2 + 2NaCl
Based on the given information, we can calculate the amount of Ba(OH)2 obtained.
30 g BaCl2 × (1 mol BaCl2/208.23 g BaCl2) × (1 mol Ba(OH)2/1 mol BaCl2) × (137.3 g Ba(OH)2/1 mol Ba(OH)2) = 8.42 g Ba(OH)2
20 g NaOH × (1 mol NaOH/39.997 g NaOH) × (2 mol Ba(OH)2/2 mol NaOH) × (137.3 g Ba(OH)2/1 mol Ba(OH)2) = 17.48 g Ba(OH)2
Therefore, a total of 25.9 g of Ba(OH)2 is obtained during the reaction of 30 g of BaCl2 and 20 g of NaOH.
There is a surplus of NaOH, with a total of 2.5 g of NaOH remaining (20 g NaOH - 17.48 g Ba(OH)2 = 2.52 g NaOH).
What is balanced equation?
A balanced equation is an equation in which the number of atoms of each element on either side of the equation are equal. For example, the following equation is balanced: 2H2 + O2 → 2H2O
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3 Cu + 8HNO3 g 3 Cu(NO3)2 + 2NO+ 4 H₂O
In the above equation how many moles of NO can be made when 45 moles of HNO3 are
consumed?
Taking into account the reaction stoichiometry, 11.25 moles of NO can be made when 45 moles of HNO₃ are consumed.
Reaction stoichiometryThe balanced reaction is:
3 Cu + 8 HNO₃ → 3 Cu(NO₃)₂ + 2 NO + 4 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
Cu: 3 molesHNO₃: 8 molesCu(NO₃)₂: 3 molesNO: 2 molesH₂O: 4 molesMass of NO formedIit is possible to use a simple rule of three as follows: if by reaction stoichiometry 8 moles of HNO₃ form 2 moles of NO, 45 moles of HNO₃ form how many moles of NO?
moles of NO= (45 moles of HNO₃× 2 moles of NO)÷ 8 moles of HNO₃
moles of NO= 11.25 moles
Finally, 11.25 moles of NO are formed.
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What mass of AuCl3 (MW 303 g/mol) contains 5.0 x 10^23 atoms of Cl? a. 760 g b. 0.838 c. 120 g d. 84g
e. 28g
In order to round this up to 84 grammes correctly after solving for this, we will receive 83.9 grammes. We're finished with this final response.
What is gold chloride used for?PubChem's entry for gold trichloride is AuCl3.
used to create various gold compounds as the initial solution. a step before making ultra pure gold metal. Using electroplating as an anode in an electric cell as well as electroless plating. Brightfield and darkfield microscopy both require cell body stains.
Ingestion swallowed is toxic. Skin Absorption through the skin could be dangerous. makes the skin burn.
The quantity and kinds of nutrients that enter and leave the cells are controlled.
Just round this up to 84 grammes correctly once we have solved for this and arrived at 83.9 grammes. We're finished; this is the last response we have.
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Choose all the right answers. Select three options.
The structures common to all protozoa are:
chloroplast
cytoplasm
cell membrane
cilia
cell wall
nucleus
Classify each statement as applying to osmosis dialysis or both osmosis and dialysis. Be sure to place statemnts Note:if any part of this question is? Answered incorrectly, a single red X will appear indicating that one none of the phrases has been placed incorrectly
Dialysis is the process of removing colloids from dissolved ions, crystalloid molecules, or molecules with tiny dimensions.
Write about both osmosis and dialysis.Osmosis and dialysis both fall under the definition of "a separation method that uses a semipermeable membrane to separate molecules based on their size and charge."Both osmosis and dialysis fall under the definition of "a process of separating dissolved solutes based on their ability to pass through a selectively permeable membrane."Osmosis is a technique that transfers water from a diluted solution to a concentrated solution through a membrane that is selectively permeable.Dialysis falls under the definition of "a method that uses a membrane to separate ions and tiny molecules based on their charge and molecular weight.""A procedure whereby a solution is passed across a semipermeable membrane to remove dissolved solutes from the solution" - pertains to both dialysis and osmosisOsmosis is defined as "a naturally occurring process in which water passes across a membrane from a diluted solution to a more concentrated solution."Dialysis falls under the definition of "a separation procedure that uses a membrane to separate tiny molecules and ions based on their size and charge."To know more about dialysis visit: https://brainly.com/question/13454495
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What reagent (or compound) causes the observed visual change in positive Lucas test? A. The alkyl halide product is insoluble in water B. Cr(VI) is reduced to Cr(IlI) C. The product hydrazone is insoluble D Ag(l) is reduced to Ag(O)
The alkyl halide product is insoluble in water is reagent (or compound) causes the observed visual change in positive Lucas test.
What is reagent?A reagent, sometimes known as an analytical reagent, in chemistry is a substance or compound supplied to a system to either initiate a chemical reaction or test whether one happens. Although the terms "reagent" and "reactant" are frequently used synonymously, "reactant" refers to the component that is consumed during a chemical reaction. Reagents are frequently employed to test for the presence of specific compounds since they can cause specific reactions when they bind to the substance or other related molecules.A versatile reagent for the quick introduction of a hydrogen atom, oxygen atom, or hydroxyl group into the target product, water has been intensively researched in recent years as one of the most affordable and environmentally friendly solvents.
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Based on the Law of Conservation of Mass, what mass of products form when baking soda decomposes?
NaHCO3 → Na₂CO3 + H₂O + CO₂
Give your answer to the correct number of significant figures.
(g) Sodium Chloride = [?]
From the law of conservation of mass, the mass of products will be 25 g when 25 g baking soda decomposes.
What is the law of conservation of mass?Matter can be changed through physical changes or chemical changes from one form to another form, but through all these changes, the matter will be conserved.
The quantity of matter that exists before and after the change will be the same so none of the matter is created or destroyed.
The balanced equation for the decomposition of baking soda:
NaHCO₃ → Na₂CO₃ + H₂O + CO₂
Given, the mass of the baking soda = 25 g
From the law of the conservation of the mass:
The mass of the products after decomposition = 25 g
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in windows 7, what is designed to replace vb script for scripting and performing actions?
The scripting language known as Microsoft VBScript (Visual Basic Script) was created by Microsoft and is based on Visual Basic. It is a general-purpose, lightweight, and active scripting language.
Is Visual Basic is a scripting language?When it comes to scripting languages, JavaScript is utilised on the client side, whereas VBScript can be used on the server and client. In contrast to VBScript, which employs various operators for various operations, JavaScript employs a single operator for all operations.
VBScript is a scripting language, and that should be understood right away. PowerShell is primarily designed to be a shell, though it can also be used for scripting. Thus, learning VBScript may come naturally to you if you have experience with a scripting language like Visual Basic.
Microsoft The Microsoft scripting language known as VBScript (Visual Basic Script) is based on Visual Basic and is a general-purpose, lightweight, active language. A test automation tool called Quick Test Professional (QTP) now uses VBScript as its primary scripting language.
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How would you combine reactions A-C, shown below, to obtain the overall reaction: NH,(g) +BH,(g) +0,(g)_ 21,0(g) + HBNH(s) Please select all that apply. a. 2H2,(g) +o2,(g) - 2H2O(g) b. H3BNH3(s) - NH3(g) + BH3(g) c. H3BNH3(s) —2H2(g) + HBNH(s)
H3BNH3(s) - NH3(g) + BH3 is the correct option
what is enthalpy of formation?The standard enthalpy of production is the enthalpy change that occurs when 1 mole of a substance is made up of its constituent elements in their standard states. In its natural condition, a pure element has a standard enthalpy of production of zero.
The physical states of the reactants and products (gas, liquid, solid, or solution), the pressure of any gases present, and the reaction temperature all affect how much hydrogen (H) is created during a reaction.
The change in a system's enthalpy that happens when one mole of a substance burns completely in oxygen or air at a certain temperature is known as the enthalpy of combustion.
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Air quality is a measure of how clean or polluted the air is.
The given statement stating that air quality is a measure of how clean or polluted the air in an ecosystem is, hence the statement is true.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .
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draw the structure of a saturated hydrocarbon and draw the structure of an unsaturated hydrocarbon. Explain the difference between the two compounds
The difference between the two compounds a saturated hydrocarbon is a compound in which all the carbon-carbon bonds are single bonds and an unsaturated hydrocarbon compound that contains at least the double or triple bond between carbon atoms.
A saturated hydrocarbon is a hydrocarbon compound in which all the carbon-carbon bonds are single bonds. An example of a saturated hydrocarbon is methane (CH4). The Lewis structure of methane would be:
H
|
H-C-H
|
H
An unsaturated hydrocarbon is a hydrocarbon compound that contains at least one double or triple bond between carbon atoms. An example of an unsaturated hydrocarbon is ethene (C2H4). The Lewis structure of ethene would be:
H H
| |
C = C
| |
H H
The main difference between saturated and unsaturated hydrocarbons is the presence of double or triple bonds. Saturated hydrocarbons only contain single bonds between carbon atoms, while unsaturated hydrocarbons contain at least one double or triple bond. This difference in bonding leads to a difference in chemical properties such as reactivity. Unsaturated hydrocarbons tend to be more reactive than saturated hydrocarbons because the double or triple bond provides a site for chemical reactions to occur. Saturated hydrocarbons are usually more stable and less reactive than unsaturated hydrocarbons. It's worth to mention that unsaturated hydrocarbons have higher boiling point than saturated hydrocarbons of similar molecular mass because the double bond creates stronger intermolecular forces of attraction between the molecules.
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Some diazotrophs produce a vanadium-containing VFe protein in addition to the MoFe protein. The vanadium-containing nitrogenase converts N2 to NH3 and also converts CO to compounds such as ethane and propane what aspect of the standard nitrogenase reaction is responsible for production of alkanes?
When molybdenum is not accessible, vanadium nitrogenase, a crucial enzyme for nitrogen fixation found in nitrogen-fixing bacteria, is employed instead.
Vanadium is a rare element that life uses mostly through vanadium nitrogenases. Vanadium nitrogenase, a crucial enzyme in the nitrogen cycle, turns nitrogen gas into ammonia, making previously inaccessible nitrogen available to plants. Vanadium nitrogenase, in contrast to molybdenum nitrogenase, can also convert carbon monoxide into ethylene, ethane, and propane. However, both enzymes can convert acetylene to ethylene and protons to hydrogen gas . Members of the bacterial genus Azotobacter, as well as the species Rhodopseudomonas palustris and Anabaena variabilis, all include vanadium nitrogenases.Vanadium nitrogenase performs most of the same tasks as the more popular molybdenum.
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Alkanes like ethane and propane are produced as a result of the nitrogenase process. This reaction can result in H2 as it transforms N2 NH3 (dihydrogen).
Diazotrophs are a class of enzymes that can convert atmospheric nitrogen into ammonia. Both MoFe protein and VFe protein, which contain vanadium, are present. Alkanes are saturated acyclic hydrocarbons. They consist of higher members like propane, methane, ethane, etc. The nitrogenase enzyme is essential for the fixation of nitrogen. The nitrogenase enzyme is used in the typical nitrogenase process to change nitrogen (N2) into ammonia (NH3). The two proteins molybdenum-iron and iron protein make up the majority of this enzyme. Alkanes like ethane and propane are produced as a result of the nitrogenase process. This reaction can result in H2 as it transforms N2 NH3 (dihydrogen). This H2 is used to create alkanes like ethane (C2H6) and propane as well as to decrease carbon monoxide (C3H8).
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A new element has three isotopes with mass numbers of 288, 290 and 291. The weight averaged atomic mass of this element is 289.2 and the percent abundance of the heaviest isotope-291 is 35%, what are the percent abundances of the other two isotopes?
The percent abundances of the other two isotopes of masses 288 and 290 are 57.5% and 7.5% respectively.
What are isotopes of an element?Isotopes of an element refer to the atoms of an element that have different atomic masses.
The relative atomic mass of an element or the weighted average atomic mass of an element is the sum of the isotopic mass and the relative abundances of each of the isotopes of an element.
The percent abundances of the other two isotopes of an element that has three isotopes with mass numbers of 288, 290, and 291, and whose weighted average atomic mass of this element is 289.2, and the percent abundance of the heaviest isotope-291 is 35% is determined as follows:
Let the percent abundance of the isotope of mass 228 be x;
the percent abundance of the isotope of mass 290 will be 65% - x
289.2 = 288x + 290(0.65 - x) + 291 * 0.35
289.2 = 288x + 188.5 - 290x + 101.85
2x = 1.15
x = 0.575 or 57.5%
Hence, the percent abundances are 57.5% and 7.5% respectively.
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Please help and correctly please
RNA stays in the nucleus whereas DNA can leave is a false.
Why DNA is stored in the nucleus but RNA can leave it?
A single-stranded mRNA created during DNA transcription exits the nucleus through nuclear pores. Nuclear pores control how molecules are transported into and out of the nucleus.
Where does RNA leave?
Messenger RNAs (mRNAs), which drive protein synthesis, must be exported to the cytoplasm because of this physical barrier, whereas proteins that take part in nuclear functions are imported into the nucleus. Additionally, certain RNA types that have been exported to the cytoplasm come back into the nucleus [1].
Hence above given is a correct answer.
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Cars running on fossil fuels contribute a high amount of pollutants into the atmosphere, one of which is carbon dioxide.
Which other gas is produced by the internal combustion engine in a car?
Answer: You could say carbon monoxide from incomplete combustion
Explanation:
if cis-2-butene is treated with meta-chloroperbenzoic acid what is the final product?
mCPBA is widely used for chemical transformations such as the oxidation of carbonyl compounds.
What does meta chloroperoxybenzoic acid do?mCPBA reacts with alkenes to produce epoxides. The stereochemistry is always preserved in this reaction, which is one of its essential characteristics. In other words, a trans alkene will produce a trans epoxide while a cis alkene will produce a cis-epoxide.
Meta-chloroperoxybenzoic acid, or m-CPBA, is a very helpful reagent that is typically used in the synthesis of epoxides. mCPBA, MCPBA, or m-CPBA may all be used interchangeably. It's all essentially the same.
Take note of the additional O in the molecule, which otherwise resembles a carboxylic acid. It should be similar to the distinction between hydrogen per-oxide (HOOH) and hydrogen oxide to understand what is meant by a "per-acid" (H2O). You should take note of how weak the oxygen-oxygen bond is (approximately 33 kcal/mol or 138 kJ/mol).
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Fill in the equilibrium table for the reaction of H2(g) and N29) to form NH3(g) Initial Conditions: A1.0-L vessel is charged with 2.0 mol H,(g) and 1.0 mol N,(g) at 100°C +3x 2.0-3x 2.0-X 2.0 + 2x 2.0+3X
1.0+2x 1.0 2.0+2x + x - 2x - 3x 1.0-2x 2.0 +x 1.0-X 2.0- 2x 1.0+3x Concentration (M) 3H2(g)+ Initial Change Equilibrium 2NH3(g) ?
The concentration of 2NH₃ is zero and initial change in equilibrium for 2NH₃ is 2x.
How can you alter a reaction's equilibrium?By introducing or removing one or more reactants or products, a chemical system that is in equilibrium can be momentarily shifted out of equilibrium. To bring the system back to equilibrium, more adjustments are made to the reactant and product concentrations.
Initial:
The reactants' initial concentrations are 2.0 mol H₂ and 1.0 mol N₂. The concentration of the product 2NH₃ is initially 0.
Change:
Let's use the variable "x" to represent the change in concentration.
The reactant's concentration decreases over time by a factor of x. Put any coefficients you have in front of the variable x as -3x for 3H₂ and -x for N₂ if you have any (such as 3H₂). Since 2 moles of NH₃ are produced on the product side, its concentration will change by +2x.
Equilibrium:
Equilibrium = Initial + change
For 3H₂ = 2.0 [initial] + (-3x) [change] = 2.0 - 3x
For N₂ = 1.0 + (-x) = 1.0 - x
For 2NH₃ = 0 + 2x = 2x
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Dichloroethylene (C2H2Cl2) has three forms (isomers), each of which is a different substance.
Part A
Draw Lewis structures of the three isomers, all of which have a carbon–carbon double bond.
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all hydrogen atoms.
do not forget about the lone pairs on the Cl atoms.
Dichloroethylene (C2H2Cl2) has three isomers, each of which is a different substance. The three isomers are: cis-1,2-dichloroethylene, trans-1,2-dichloroethylene, vinyl chloride
1. cis-1,2-dichloroethylene: This isomers has the Cl atoms on the same side of the carbon-carbon double bond. Its Lewis structure would be H3C-CHCl-Cl
2. trans-1,2-dichloroethylene: This isomer has the Cl atoms on opposite sides of the carbon-carbon double bond. Its Lewis structure would be H3C-CCl2-H
3. Vinyl chloride: This isomer has one chlorine atom bonded to the carbon atom double bonded to another carbon atom. Its Lewis structure would be H2C=CHCl
Each of these isomers have different chemical and physical properties. It's worth to mention that these structures are the Lewis Structure which are not always the same as the 3D structure of the molecule.
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The reaction represented above goes essentially to completion. the reaction takes place in a rigid, insulated vessel that is initially at 600k. Which of the following statements about the bonds in the reactants and products is most accurate?
(A) The sum of the bond enthalpies of the bonds in the reactant is greater than the sum of the bond enthalpies of the bonds in the products. (B) The sum of the bond enthalpies of the bonds in the reactant is less than the sum of the bond enthalpies of the bonds in the products. (C) The length of the bond between carbon and oxygen in CH,OH is shorter than the length of the bond between carbon and oxygen in CO. (D) All of the bonds in the reactant and products are polar.
Option (b) is correct. The sum of the bond enthalpies of the bonds in the reactant is less than the sum of the bond enthalpies of the bonds in the product.
Bond enthalpy is also known as bond-dissociation enthalpy. Bond enthalpy describes the amount of energy stored in a bond between atoms in a molecule. Bond dissociation enthalpy is the energy that needs to be added for the symmetrical cleavage of a bond in the gas phase. It is the amount of energy required to break one mole of a specific covalent bond in the gas phase. Average bond enthalpies are always positive as breaking bonds always requires energy. It is endothermic. Bond enthalpies are affected by the environment. There are same type of bond can have different bond energies in different environments.
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The most accurate statement about the bonds in reactants and products is The sum of the bond enthalpies of the bonds in the reactant is less than the sum of the bond enthalpies of the bonds in the products.
Bond-dissociation enthalpy is another name for bond enthalpy. The amount of energy held in a bond between atoms in a molecule is known as bond enthalpy. The additional energy required for a bond's symmetrical cleavage in the gas phase is known as the bond dissociation enthalpy. It is the amount of energy necessary to dissolve one mole of a particular covalent bond in gas. Because it always takes energy to break bonds, average bond enthalpies are always positive. There is endothermy. Environment has an impact on bond enthalpies. In various contexts, the same type of bond might have various bond energies.
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Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the
coefficient is "1".
C₂H6+
02-
CO₂ +
✓ H₂O
Answer:
C₂H6 + O2 → 2CO2 + 3H2O
How many molecules are contained in 55.0g of co2??
Answer: 7.52*10^23 molecules.
Explanation: This is a classic Stoichiometry problem.
In one mole of any substance, there are 6.02*10^23 molecules. This number is called Avogadro's number. We are given 55 grams of Co2 so to convert that to moles, we divided by the molar mass of Co2. We find the molar mass by adding the molar masses of the elements that make up the compound.
There is one molecule of Carbon and two molecules of Oxygen in one molecule of Co2. From the periodic table, the molar mass of Carbon is 12.01 and 16.00 for Oxygen. 1(12.01)+2(16.00) gives us the molar mass. We then divided 55 grams by that mass to find the number of moles. We then multiply the number of moles by Avogadro's number (6.02*10^23) to find the total number of molecules.
You can use this method for solving any problem that asks you to find the number of atoms or molecules of some number of grams of a substance.
Rank the following gases in order of increasing root-mean-square velocity at 50 degrees Celsius.
a. Cl2
b. HBr
c. CO
d. SF6
Sulfur hexafluoride is a light yellowish-green gas with HBr. Whether Cl2 is polar or not may be a point of contention for many pupils. SF6< HBr<Cl2<CO in order of increasing root-mean-square velocity at 50.
It is a gas that is tasteless, odourless, inflammable, and non-toxic. Six fluorine atoms are joined to a central sulphur atom in Sulfur hexafluoride, which has an octahedral structure. Due to the fact that bromine is a member of the halogen family, hydrogen bromide, abbreviated as HBr, is a hydrogen halide chemical. Although quite caustic and hazardous, this chemical has a variety of uses. In both organic and inorganic bromine compounds, it is employed to produce them. Chlorine is a substance that has the chemical formula Cl2. It is regarded as being the second-lightest halogen. It is a light yellowish-green gas that exists at room temperature.
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what was one reason alexander the grear was able to control his enormouse empire?
A he completely destroyed nearly every city he captured
C he allowed conquered people to keep their cultures
B he conquered most lands without existing leaders
Answer:i think its C
Explanation:
When a red blood cell is placed in a solution that is more concentrated than the interior of the cell, it can be damaged. Saline solution is intended to be isotonic with animal cells having an approximate concentration of 0.900g sodium chloride per 100 mL of water. To prepare 1.00 liter of saline solution, how many grams of sodium chloride would be needed?
Given that there is a concentration of 0.9 gram of NaCl per 100mL of water.
Therefore for 1000mL ,i.e., 1 litre of water, NaCl requirement is 0.900 × 10 = 9 grams.
A particle moves through an xyz coordinate system while a force acts on the particle. When the particle has the position vector = (2.00 m) - (3.00 m) + (2.00 m) , the force is = Fx + (7.00 N) - (6.00 N) , and the corresponding torque about the origin is = (4.00 N·m) + (4.0 N·m) + (2.0 N·m) . Determine Fx.
The value of Fx is -5.00N. The torque or moment of force is the rotational force.
Determine Fx?
Calculate an FX rate using this simple formula: Your starting figure (in your local currency) divided by the final number (in the new foreign currency) = the exchange rate.Let f be a function and x a value in the function's domain. We define the derivative of f with respect to x at the value x, denoted f′(x), by the formula f′(x)=limh→0f(x+h)−f(x)h, provided this limit exists.f(x) is the value of the function. m is the slope of the line. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane. x is the value of the x-coordinate.A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.To learn more about FX refers to:
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Which of the following would be expected to have sp2 hybridization on atom A? O I and IV O II O I and III O I, II, and III
I,II and III would be expected have sp2 hybridization on atom A . So the correct option is -I, II and III
sp2 hybridization is a type of chemical bonding in which an atom's three orbitals (one s-orbital and two p-orbitals) mix together to form three hybrid orbitals. These hybrid orbitals are oriented in a trigonal planar arrangement, and each one is directed at an angle of 120 degrees from the other two. In sp2 hybridization, one of the p-orbital remains un-hybridized, meaning that it does not participate in bonding. The unhybridized p-orbital can hold a lone pair of electrons, which gives the molecule its characteristic shape and reactivity.
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the complete question is :
Which of the following would be expected to have sp2 hybridization on atom A? O I and IV O II O I and III O I, II, and III
what volume would the butane gas sample occupy at a pressure of 2.35 atm?
170.21 cm³ volume would the butane gas sample occupy at a pressure of 2.35 atm.
When the temperature and quantity of the gas are held constant, the volume of a gas is inversely proportional to its pressure. This implies that when a gas's pressure rises, so will its volume, and the opposite is also true. Boyle's law is this. To make predictions in response to a change in either pressure or volume, use the following formula:
P₁V₁ = P₂V₂
Initial pressure, P1, is equal to 760 torr at 1 atm.
400 cm3 is the initial volume (V1).
P2 = 3 atm final pressure
Final volume equals (V2 = L)
V₂ = P₁V₁/P₂
V₂ = (1 atm × 400 cm³)/2.35 atm = 170.21 cm³
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The volume of butane gas is equal to 63.83 mL if the butane gas sample is held at a pressure of 2.35 atm. N-butane or normal butane are other names for butane.
With respect to a set quantity of gas and a constant temperature, the ideal gas equation states that PV = nRT = constant.
Therefore, for two distinct states of an ideal gas, P1V1 = P2V2 = constant.
V2 = P1V1/P2 after rearranging the equation above.
Take P1 equal to 1 atm and V1 equal to 150 mL.
P2 = 2.350 atm as well
When these numbers are substituted in the equation above, V2 = (1 atm 150 mL)/2.350 atm = 63.83 mL is the result.
So, 63.83 mL is the amount of butane gas.
The manufacturing of gasoline, lighter fuel, and cigarette lighters are all common uses for butane gas. Butane has the chemical formula C4H10.
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at a resting pulse rate of 79 beats per minute, the human heart typically pumps about 71 ml of blood per beat. blood has a density of 1060 kg/m3. circulating all of the blood in the body through the heart takes about 1 min for a person at rest.
Answer:
Explanation:
It pumps about 79*71 = 5629 ml per minute.
To convert ml to m3, we can use the conversion factor 1 m3 = 1,000,000 ml.
So, 5629 ml = 5629/1,000,000 m3
Then to find the mass of the blood that is being pumped through the heart per minute, we can use the density of the blood which is 1060 kg/m3 and multiply it with the volume of blood (5629/1,000,000 m3) that is being pumped through the heart per minute.
mass of blood = (5629/1,000,000 m3) * 1060 kg/m3 = 5.977 kg/min
The heart pumps about 5.977 kg of blood per minute for a person at rest.