n2 h2 nh3 if 39.5 mols of nitrogen react with 19.9 mols of hydrogen, how many mols of ammonia will be produced?

As the temperature of a system increases, the entropy increases due to an increase in the number of available energy states and thus an increase in the number of possible arrangements of molecules within those energy states.

As the temperature of a system increases, the entropy increases due to a increase in the number of available energy states and thus an increase in the number of possible arrangements of molecules within those energy states.

This can be understood by the statistical interpretation of entropy, which relates entropy to the number of possible arrangements of molecules in a given energy state. At higher temperatures, the molecules have higher kinetic energy and can occupy a greater number of energy states, resulting in a larger number of possible arrangements of the molecules within those energy states. As a result, the entropy of the system increases with increasing temperature.

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As the temperature of a system increases, the entropy increases due to an increase in the number of available energy states and thus an increase in the number of possible arrangements of molecules within those energy states. This is because at higher temperatures, molecules have more energy and are able to move more freely, increasing the number of ways in which they can arrange themselves within the available energy states.

This increase in entropy is a fundamental principle of thermodynamics, known as the Second Law of Thermodynamics.

What is Second Law of Thermodynamics ?

This law means that in any natural process, some useful energy will inevitably be lost as waste heat, making it unavailable for future use.

In simpler terms, the Second Law states that natural processes always tend towards a state of greater disorder, and it is impossible to convert all of the thermal energy in a system into useful work. This law has important implications for the behavior of engines and the efficiency of energy conversion processes.

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The answer is C.

The reactants are charcoal that is unlit + oxygen and the products are the burnt charcoal + energy.

So for every combustion reaction like this one, CxHy is the wood. So before you light the wood, it is actally a reactant together with oxygen, because without oxygen the wood will not burn. So under the influence of heat, wood produces substances like carbon dioxide and heat, the moment you see wood burning it it already producing products, CO2 and heat (which is the fire). This is a combustion reaction.

Combustion reaction is exothermic because it releases energy.

Explanation:

Lithium

Sodium

group one elements are highly reactive

The percent yield of H₂O, if 87.0 g of H₂O is produced by combining 95.0 g of O₂ and 11.0 g of H₂ is 87.87%.

Mass of any substance will be calculated by using their moles as:

n = W/M, where

W = given or required mass

M = molar mass

Moles of 95g of Oxygen (O₂) = 95g / 32g/mol = 2.96 moles

Moles of 11g of hydrogen (H₂) = 11g / 2g/mol = 5.5 moles

Given chemical reaction is:
2H₂ + O₂ → 2H₂O

From the stoichiometry of the reaction, it is clear that:

1 moles of O₂ = reacts with 2 moles of H₂

2.96 moles of O₂ = reacts with 2×2.96=5.92 moles of H₂

Here hydrogen is the limiting reagent as it has lower moles and formation of water depends on this only.

2 moles of H₂ = produces 2 moles of water

5.5 moles of H₂ = produces 5.5 moles of water

Mass of 5.5 moles of water will be calculated as:

W = (5.5mol)(18g/mol) = 99g

Given theoretical yield of water = 87g

% yield of water will be calculated as:
% yield = (87 / 99)×100 = 87.87%

Hence required value is 87.87%.

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Answer:

D

Explanation:

The pressure of the oxygen in the air is 0.21 atm. The partial pressure of a gas is the contribution that gas makes to the total pressure when the gas is part of a mixture.

Here are the steps of the hydrohalogenation mechanism using the drop-down feature:

Step 1: __Initiation__ - A molecule of hydrogen halide (HX) is polarized by a free radical initiator, which breaks the H-X bond, creating a hydrogen atom and a halogen atom.

Step 2: __Propagation__ - The hydrogen atom reacts with the alkene, forming a carbon-centered radical and a molecule of HX. The halogen atom then attacks the carbon-centered radical, forming a new carbon-halogen bond and regenerating the halogen radical.

Step 3: __Termination__ - The reaction continues until all of the alkenes has been consumed or until two free radicals combine, forming a stable molecule.

The hydrohalogenation mechanism can be explained step-by-step using the terms: electrophilic addition, carbocation, nucleophile, and halogen.

1. Electrophilic addition: In hydrohalogenation, an alkene reacts with a hydrogen halide (HX) to form a haloalkane. The reaction starts with electrophilic addition, where the alkene's double bond attracts the electron-deficient hydrogen atom of the hydrogen halide.

2. Carbocation formation: After the alkene's double bond breaks, it forms a carbocation, a positively charged carbon atom. The choice of the carbon where the positive charge resides depends on the stability of the carbocation, with more substituted carbocations being more stable.

3. Nucleophile attack: The halide ion (X-) in the hydrogen halide acts as a nucleophile, attacking the positively charged carbon atom of the carbocation.

4. Halogen addition: The halogen ion bonds to the carbocation, forming a haloalkane product.

Remember that the hydrohalogenation mechanism is an example of electrophilic addition, involving carbocation intermediates and the participation of a nucleophile, which is the halogen ion in this case.

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Answer: Fruits contain seeds and develop from the ovaries of flowering plants. The first step in making fruits is pollination. Fruit trees and plants produce flowers. Then, bees, bats, birds, and even the wind spread pollen from one flower to another.

Answer:

Fruits contain seeds and develop from the ovaries of flowering plants. The first step in making fruits is pollination. Fruit trees and plants produce flowers. Then, bees, bats, birds, and even the wind spread pollen from one flower to another.

Explanation:

Answer: 31161.9 J

Explanation:

1. Sunk Cost: The $242,000 spent on refining the acetone is a sunk cost and not relevant to future decisions.

2. Decision Analysis: Processing the acetone into lacquer thinner yields higher expected net revenue ($1,100 more) than selling it as is. Therefore, Castillo Chemical should choose to process the acetone into lacquer thinner.

1. Sunk Cost:

The sunk cost in this scenario is the $242,000 spent on refining the 74,000 gallons of acetone. A sunk cost is a cost that has already been incurred and cannot be recovered, regardless of the decision taken. It is not relevant to Castillo's decision on whether to sell the acetone as is or process it into lacquer thinner. The reason is that the sunk cost is in the past and should not influence future decisions. It cannot be changed or avoided, regardless of the course of action chosen.

2. Decision Analysis:

To determine whether Castillo Chemical should sell the acetone as is or process it into lacquer thinner, we need to compare the expected net revenue from both alternatives.

Option 1: Sell Acetone as is

Revenue from selling 74,000 gallons of acetone at $1.90/gallon = 74,000 gallons * $1.90/gallon = $140,600

Option 2: Process Acetone into Lacquer Thinner

Total revenue from selling 65,000 gallons of lacquer thinner at $3.10/gallon = 65,000 gallons * $3.10/gallon = $201,500

Total Cost of Processing:

Processing cost = 65,000 gallons * $0.60/gallon = $39,000

Shipping cost = 65,000 gallons * $0.19/gallon = $12,350

Administrative expenses = 65,000 gallons * $0.13/gallon = $8,450

Total Cost of Processing = $39,000 + $12,350 + $8,450 = $59,800

Net Revenue Difference:

Net revenue from processing = Total revenue - Total Cost of Processing

Net revenue from processing = $201,500 - $59,800 = $141,700

Expected Net Revenue Difference:

Expected Net Revenue Difference = Net revenue from processing - Revenue from selling acetone as is

Expected Net Revenue Difference = $141,700 - $140,600 = $1,100

The expected net revenue difference between selling the acetone as is and processing it into lacquer thinner is $1,100 in favor of processing the acetone. Therefore, based on the expected net revenue, Castillo Chemical should choose to process the acetone further into lacquer thinner, as it results in higher expected profitability compared to selling the acetone as is.

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Answer:

The answer is A. True

Explanation:

hope i helped

A. True

Atom in simple terms is the basic singular unit into which matter can be divided without any use or discharge of energy.

One of the major reasons for having multiple atomic models over the years is that atom and their parts, subatomic particles, are invisible.

This is where the atomic models came into play. Atomic models were theories about the structure and working of atoms based on the information that was available at that time.

The first atomic model was proposed by J.J Thomson, which is also called the plum pudding model. It proposed that within the atom there were negatively charged particles (electrons) that were floating in a positively charged liquid

The atomic model used today is Schrodinger's atomic model.

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Answer:

Because the particles are in motion, they will have kinetic energy. The particles will not all have the same energy, and the energy of the particles is constantly changing as they undergo changes in speed. Thus, for a given sample of matter, we can only talk about the average kinetic energy of the particles.

Explanation:

I hope this helps and pls mark me brainliest :)

We do know that if we "give" energy to a given object, the temperature of the object increases.

So there is a direct relationship between temperature and energy.

From this idea, we can conclude that:

"As we increase the energy, we also will see an increase in molecular motion."

We also do know that, as the temperature of an object increases, also does the kinetic energy of the particles that conform to the object (as the kinetic energy increases, the particles move more, this is why as we increase the temperature we usually see an increase in the volume of the object).

This increase in kinetic energy is related to the molecular motion (the movement of the electrons and nucleus o a molecule) as the kinetic energy of these parts increase, these move more.

So the relationship between molecular motion and energy is:

As we increase the energy, we also will see an increase in molecular motion.

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The law of conservation of energy has not been broken, provided energy is released from the fission process.

The law states that the total energy of a process is conserved. That is, the total energy or mass of a system before and after undergoing processing remains the same. However, some of the mass/energy can be converted to another form.

When a material undergoes fission, the sum total of the mass of the particles formed should be equal to the mass of the starting materials, provided that all other things remain the same.

However, if energy is released from the fission process, it means that some of the mass of the starting materials has been converted to energy and released to the environment.

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The Ph of an aqueous fe(no3)³ solution at 25°c is totally dissolves all nitrates.

Fe(no3)³ is totally dissolves all nitrates.

In a solution, iron (III) nitrate ionizes to form the following ions:

Fe(No3)³(a q)↔fe²+(a q)+2(No3)-(a q)

Sulfuric acid is a reagent that can be used to differentiate between calcium nitrate and iron (II) nitrate in aqueous solutions. While calcium ions and sulfuric acid combine to form an insoluble precipitate, iron (II) nitrate and sulfuric acid combine to form the soluble iron (II) sulfate ion.

The iron(II) ions and other spectator ions-containing solution is left behind after the calcium ion reacts with sulfuric acid to generate a white precipitate of calcium sulfate. All nitrates are completely soluble in water.

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Answer:

c

Explanation:

Hydrology is the study of the distribution and movement of water both on and below the Earth’s surface, as well as the impact of human activity on water availability and conditions.

Answer:

a

Explanation:

I think a is the answer because when you produce something you transform it's raw materials to a finished good.

I hope this helps

lower than. The moles per unit volume represent the concentration. Less moles exist in the same volume of the solution when it is diluted, resulting in a lower concentration.

Dilutions. The concentration of an aqueous solution falls when more water is added to it. This is due to the fact that while the total volume of the solution grows, the number of moles of the solute does not.

Dilution is the process in question. The following equation, M1V1 = M2V2, can be used to compare the concentrations and volumes before and after a dilution:

M1 and V1 stand for the molarity and volume of the initial concentrated solution, while M2 and V2 stand for the molarity and volume of the final diluted solution.

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To ensure accurate and precise measurements of the wavelengths of light produced by a sample, the wavelength scale of a spectroscope should be calibrated.

The wavelength scale is calibrated by comparing the spectroscope readings to a known standard, such as a calibration lamp that emits light at specific, well-defined wavelengths. This allows the spectroscope to be precisely adjusted so that the correct wavelength for a given sample can be determined.

Failure to calibrate the wavelength scale can result in inaccurate readings and incorrect conclusions about a sample's composition. In analytical spectroscopy, for example, identifying and measuring the specific wavelengths of light emitted by a sample is critical for determining the chemical composition and structure of the sample. Thus, proper calibration is essential to ensure the validity of the results.

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True. Polarity impacts bonding between water molecules in both liquid and solid states. Polarity arises due to the unequal sharing of electrons between oxygen and hydrogen atoms in a water molecule, leading to partial positive and negative charges.

These charges cause water molecules to form hydrogen bonds, which give water its unique properties in liquid and solid states. Water molecules have a polar covalent bond due to the unequal sharing of electrons between the hydrogen and oxygen atoms. This polarity allows water molecules to form hydrogen bonds with each other. In the liquid state, water molecules are constantly moving and forming and breaking hydrogen bonds with each other. In the solid state, the water molecules are arranged in a crystal lattice structure where each molecule is bonded to four others through hydrogen bonds. This arrangement gives ice a lower density than liquid water and allows it to float. The polarity of water also makes it a good solvent for polar and charged substances.

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Gases near together and vibrate in position however, don't circulate beyond each other. In a liquid, the particles are interested in every different but now not as a great deal as they may be in a strong.

The particles of a liquid are near together, constantly transferring, and may slide beyond one another. The Kinetic-molecular concept attempts to explain the behavior of fuel molecules based totally on the nature of gasoline. The principle is grounded on  simple assumptions

In gases the debris passes swiftly in all directions, regularly colliding with every different facet of the box. With a boom in temperature, the debris gains kinetic strength and passes more quickly. Gasoline is a state of matter that has no constant form and no fixed extent. Gases have a decreased density than other states of the count, together with solids and liquids. there may be a high-quality deal of empty area between debris, that have loads of kinetic energy and aren't especially drawn to one another.

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The correct answer is option b) Alpha, gamma, beta.

Alpha, beta, and gamma are the three main types of ionizing radiation. They differ in their ionizing ability, energy, and penetration power.

Alpha particles have the least penetrating power because they are relatively large and heavy, consisting of two protons and two neutrons bound together. They lose their energy rapidly and can be stopped by a sheet of paper or the outer layer of human skin.

Gamma rays, on the other hand, are highly energetic electromagnetic radiation and have the highest penetrating power. They can easily pass through most materials, including human tissue and lead, and require thick concrete or steel barriers to shield against them.

Beta particles are high-speed electrons emitted by some radioactive isotopes. They have moderate penetrating power and can pass through materials such as plastic and aluminum but are stopped by thicker materials like lead or concrete.

Therefore, the correct order of increasing ability to penetrate matter is alpha, gamma, beta (option b).

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1. State Newton's Third Law of Motion:

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. The third law is also known as the law of action and reaction.

2. List three examples:

a. When we jump our legs apply a force to the ground, and the ground applies an equal and opposite reaction and we leave the ground.

b. When we hit the ball with a bat is another example. When the bat hits the ball, the ball goes off the bat with the same force that the bat goes back,

c. When we bounce a ball. A ball is able to bounce because the reaction from the ground. If there was no reaction from the ground, the ball would not bounce. It would stick to the ground.

3. 3. When you hit a ball, the ball hits back with an equal and opposite force.

a. Since the forces are equal and opposite, why does the ball move?

b. Why is it that you do not move as far as the ball?

a. Because the two forces are not applied to the same object. They are two different systems. The ball hits us and makes a force over us. And we hit the ball and produce a force over the ball. But both forces are not applied to the ball, that's why it moves.

b. Because of our weight we are fixed to the ground. We are much heavier than the ball, so our weight is greater than the reaction of the ball.

The solution could be an acid. Acids conduct electrical current poorly and turn blue litmus paper red due to their ability to donate protons (H+) to the litmus paper, causing a change in color.

Acids have a pH less than 7 and are known for their sour taste and corrosive properties. They typically contain hydrogen ions (H+) and have a higher concentration of positive ions, making them inefficient conductors of electricity compared to bases or salts. The reaction between the acid and the litmus paper indicates the presence of hydrogen ions, which leads to the color change. Examples of acids include hydrochloric acid (HCl) and sulfuric acid (H2SO4). turn blue litmus paper red due to their ability to donate protons (H+) to the litmus paper, causing a change in color.

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Answer:

4834.20 ml or 4.8342 L

Explanation:

Gold has density of 19.30 g/ml

so according to d = m/V

V = m/d = 93,300/19.30 = 4834.19689119 = 4834.20 ml or 4.8342 L

The volume of nuggets of gold that has a mass of 93,300g is 4834.20 ml or 4.8342 L.

Volume is the space occupied by a three-dimensional object.

Density is the mass per unit volume. Density is a scalar quantity. It is denoted by d and the symbol for density is given as rho, a Greek symbol. Density is calculated as mass divided by volume.

Density is directly proportional to mass and inversely proportional to volume. Thus, with an increase in density, mass increases and volume decreases, and vice-versa

Gold has a density of 19.30 g/ml

so according to density = mass/ volume

V = m/d = 93,300 / 19.30 = 4834.19

4834.20 ml or 4.8342 L

Therefore, the volume of nuggets of gold that has a mass of 93,300g is 4834.20 ml or 4.8342 L.

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Answer:

it contains most of the mass

Approximately 777.6 grams of water is needed to make 7.2 moles of glucose based on the balanced equation.

The balanced equation provided is:

6CO2 + 6H2O -> C6H12O6 + 6O2

From the equation, we can see that for every 6 moles of water (H2O), 1 mole of glucose (C6H12O6) is produced. Therefore, we need to determine the amount of water required to produce 7.2 moles of glucose.

The mole ratio between water and glucose is 6:1. This means that for every 6 moles of water, we obtain 1 mole of glucose. To find the amount of water needed for 7.2 moles of glucose, we set up a proportion using the mole ratio:

(6 moles H2O / 1 mole glucose) = (x moles H2O / 7.2 moles glucose)

Solving for x, we can cross-multiply:

6 moles H2O * 7.2 moles glucose = x moles H2O * 1 mole glucose

43.2 moles H2O = x moles H2O

Therefore, we need 43.2 moles of water to produce 7.2 moles of glucose.

To convert moles of water to grams, we need to know the molar mass of water, which is approximately 18 g/mol. Using the molar mass, we can calculate the mass of water needed:

Mass of water = moles of water * molar mass of water

Mass of water = 43.2 moles * 18 g/mol

Mass of water = 777.6 g

Therefore, approximately 777.6 grams of water is needed to make 7.2 moles of glucose based on the balanced equation.

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Answer:

The restoring force that prevents the furniture from tipping over when pushing the furniture towards the right, F= W × D

Where;

W = The weight of the furniture

D = The horizontal distance from the center of gravity of the furniture, CG and the to the lower right corner of the furniture

Given that A > D, for the furniture to tip over when pushing above the CG, we have;

F1 × A ≤ W × D

∴ F1 << W or for a force much smaller than W, the weight of the furniture applied above the center of gravity, the furniture will tip over

However when the force F2 is applied, where C < D, we have for no tipping over;

F2 × C ≤ W × D, therefore, given that C < D, when a force much higher than the weight, W, is applied at F2, the furniture will remain upright

Therefore, it is better push at a point lower than or equal to the center of gravity, whereby the point B is lower than the center of gravity, it is better to push at point B, Ravleen is correct and it is better to push at point B because the center of gravity is lower

If the furniture is pushed at the wrong spot it may tip over

Please see attached drawing

Explanation:

Answer:

frequency

Explanation:

because a wave is equally a frequency

assuming that the volumes of reactants and products are measured at the same temperature and pressure if 2.75l n2 reacts with 7.75l h2, 10.50 L  is the theoretical yield (in liters) of nh3

N2 + 3H2 = 2NH3, volume: 2.75 +7.75 = 10.50. volume of ammonia gas is 10.50 L because of law of conservation of mass Gas volume  the correlation among pressure, volume, moles, and temperature. is the volume that mole of a chemical substance or a combination of substances currently takes. As a result, at STP, this same mole ratio volume of a gas is 22.4 litres. A gas's volume refers to the amount of three - dimensional space that the gas occupies. The volume of a gas embedded in a sealed jar is identical to the volume of the container. A system's volume is a critical comprehensive criterion for trying to describe its thermodynamic state. The volume, an intensive estate, is the volume of the system per unit mass.

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