How many moles of H2 are needed to produce 24 moles of NH3?

Answer:

B...

Explanation:

....just know I'm right

Answer:  B Translucent

Explanation: Sunglasses allow some light to pass through which allows you to see. The rest of the light is either absorbed or reflected off the surface of the glasses.

Electrons are transferred from atoms of sodium to atoms of phosphorous The sodium atom looses electron and the phosphorus atoms gains electrons.

The electron is a subatomic particle with an elementary electric charge of -1. Electrons are the first generation of the lepton particle family and are widely regarded as elementary particles due to the lack of known components or substructure.

This transfer causes the sodium atoms  to acquire positive charge and phosphorous to acquire negative charge .

Thus, the sodium and phosphorus atoms strongly attract with each other.

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Your question is incomplete, most probably, your question was

Complete the paragraph about the formation of sodium phosphide.

Electrons are transferred from atoms of

and the phosphorus atoms

to atoms of

C. This transfer makes the sodium atoms

As a result, the sodium and phosphorus atoms strongly

each other.

Answer:

To the left.

Explanation:

Step 1: Write the balanced reaction at equilibrium

2 SO₂(g) + O₂(g) ⇄ 2 SO₃(g)

Step 2: Calculate the reaction quotient (Qc)

Qc = [SO₃]² / [SO₂]² × [O₂]

Qc = 0.254² / 0.500² × 0.00855

Qc = 30.2

Step 3: Determine in which direction will proceed the system

Since Qc > Kc, the system will shift to the left to attain the equilibrium.

Answer:

The volume is decreasing at a rate of 30 cm³/min.

Explanation:

From the question given above, pressure (P) and volume (V) are related by the following equation

PV = C

C => constant

If we make P the subject of the above, we shall have:

P = C/V

From the equation above (i.e P = C/V),

We can say that P is inversely proportional to V. This implies that as P is increasing, V will be decreasing and also, as P is decreasing, V will be increasing.

Considering the question given above, the pressure (P) is increasing at a rate of 30 kPa/min. Therefore, the volume will be decreasing at a rate of 30 cm³/min.

Answer:

C2H5OH(l)+3O2(g)⟶2CO2+3H2O(l)

Explanation:

The balanced equation for the combustion of ethanol will be

\(C_{2}H_{5}OH+3O_{2}------- > 2CO_{2}+3H_{2}O\). According to this carbon dioxide and water will be the product.

Combustion is a chemical process during which a material reacts quickly with oxygen and generates heat.

The original substance is referred to as the fuel, and the supplier of oxygen is referred to as the oxidizer. The fuel can be solid, liquid, or gas, but it is usually a liquid for airplane propulsion.

Combustion is a chemical reaction between two or more substances, usually involving oxygen, that produces light and heat in the form of a flame.

The products of complete ethanol combustion are carbon dioxide and water, as well as the start releasing of light and heat.

The equation will be:

\(C_{2}H_{5}OH+3O_{2}------- > 2CO_{2}+3H_{2}O\)

Thus, in this way, the combustion of ethanol occurs.

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Answer:

balanced............

The organic product for the reaction given in the image is:
"Quaternary ammonium hydroxide". This process is referred to as Hofmann's elimination.

The chemical process of creating tertiary amines and alkenes using the treatment of quaternary ammonium with excess methyl iodide, that is, (CH₃)₂ NH, as well as...

the treatment of the resulting compound with a mixture of heat, silver oxide (that is Ag₂O (aq)), and water is what is referred to as Hoffmann's Elimination process.

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Answer:

Hope this helps

Explanation:

A generalization I can make about the Huang River is that the Huang River is the most important river in China. Also called the Yellow River, it is where historians believe ancient Chinese people settle in to develop its civilization on the banks of the river for the many benefits it had for life and agriculture. However, early Chinese people had to learn how to control the floods of the river in order to survive ad prosper.

Answer:

other guys is correct

Explanation:

The most likely explanation for the given observations is that the crystals lose water when heated, resulting in a transition from crystals to a powdery substance and a decrease in mass after cooling. Option A

When certain substances contain water molecules as part of their crystal structure, heating them can cause the water molecules to evaporate, leading to the loss of water. This can result in a change in the physical properties of the substance, such as a transition from crystalline to powdery form.

The absence of condensation or other visible changes inside the test tube suggests that the substance is not reacting with the air or giving off a colorless gas. If such reactions were occurring, there would likely be observable changes or reactions taking place.

The decrease in mass after cooling can be attributed to the loss of water molecules. Water has mass, and when it evaporates, it escapes from the test tube, causing a reduction in the overall mass of the substance.

Option A

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Explanation:

It is known that the chemical formula of aluminum sulfite is given by:

The sulfite ion = SO3-2, so it has 3 x 1 SO3-2 = 3 sulfite ions

Answer: 3

Answer:

double decomposition reaction

Answer:

7.56 atm

Explanation:

Boyle's law states that the pressure and volume of a gas are proportional to each other

The formular for Boyle's law is

P1V1=P2V2

According to the question above, the values given are

P1=1.50 atm

P2= ?

V1=12.60 litres

V2= 2.50 litres

Let us make P2 the subject of formular

P2= P1V1/V2

P2= 1.50×12.60/2.50

P2= 18.9/2.50

P2= 7.56 atm

Hence when the volume of a gas is 2.50 litres then it's pressure is 7.56 atm

The ionization of the following acids can be represented as:

Tetraoxosulphate (VI) Acid (\(H_{2}SO_{4}\)) ionizes as H+ and SO4^2- ions.

Trioxonitrate (V) Acid (\(HNO_{3}\)) ionizes as H+ and \(NO_{3-}\) ions.

Ethanoic Acid (\(CH_{3}COOH\)) ionizes as H+ and \(CH_{3}COO^{-}\) ions.

Tetraoxosulphate (VI) Acid, also known as sulfuric acid (\(H_{2}SO_{4}\)), ionizes as follows:

\(H_{2}SO_{4}\) → \(H+\) + \(SO_{4}^{2-}\)

In this reaction, sulfuric acid donates two hydrogen ions (H+) to the solution, forming sulfate ions (\(SO_{4}^{2-}\)).

Trioxonitrate (V) Acid, commonly known as nitric acid (\(HNO_{3}\)), ionizes as follows:

\(HNO_{3}\) → \(H+_{}\) + \(NO_{3-}\)

Nitric acid dissociates to release one hydrogen ion (\(H+\)) and a nitrate ion  (\(NO_{3-}\)).

Ethanoic Acid, also known as acetic acid (\(CH_{3}COOH\)), ionizes as follows:

\(CH_{3}COOH\) → H+ + \(CH_{3}COO^{-}\)

Acetic acid donates a hydrogen ion (H+) to the solution, forming an acetate ion (\(CH_{3}COO^{-}\)).

In all cases, the acids dissociate in water, producing hydrogen ions (H+) as positively charged ions and their corresponding anions. The hydrogen ions are responsible for the acidic properties of these substances, while the anions contribute to the overall charge balance in the solution. The ionization of acids allows them to conduct electricity in aqueous solutions and react with other substances.

The question was incomplete. find the full content below:

Indicate the ionization of the following acids,

Tetraoxosulphate (VI) Acid

Trioxonitrate (V) Acid

Ethanoic Acid.​

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Answer:

The chemical formula of barium phosphate is Ba3(PO4)2.

Explanation:

brainlest ples :(

Like charges repel each other, while opposite charges attract each other. This principle is one of the fundamental aspects of electrostatics. According to Coulomb's law, the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

As the distance between two charged particles decreases, the force between them increases. This is because the closer the particles are, the stronger the electric field they create, leading to a stronger force of interaction.

On the other hand, as the magnitude of the charges decreases, the force between the particles also decreases. This is because the force is directly proportional to the product of the charges. If one or both of the charges are smaller, the force they exert on each other will be weaker.

In summary, according to Coulomb's law, decreasing the distance between charged particles increases the force between them, while decreasing the magnitude of the charges decreases the force. This understanding of the relationship between charge, distance, and force is crucial in explaining the behavior of charged particles and the interactions between them.

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Answer:

115g

Explanation:

100*8=800

800+150+200=1150

1150/10=115

Answer:

The solubility of alkaline earth metal hydroxides in water increases down the group because the size of the metal cation increases as you move down the group. This increase in size results in a decrease in the cation's charge density, which makes it less able to attract and hold onto hydroxide ions. As a result, the hydroxides become more soluble in water as you move down the group. Additionally, the lattice energies of the hydroxides decrease down the group, making it easier to break apart the crystal lattice structure and dissolve the hydroxides in water.

Types of luminous flames:

1. Yellow Luminous Flame

2. Smoky Luminous Flame

3. Orange Luminous Flame

4. Blue Luminous Flame

Luminous flames are characterized by their visible glow, which is caused by the incomplete combustion of fuel. The presence of soot particles in the flame causes the emission of light. There are different types of luminous flames, which can be classified based on their fuel composition and burning conditions. Here are some common types of luminous flames:

1. Yellow Luminous Flame: This is the most common type of luminous flame, often seen in open fires, candles, and gas stoves. It appears yellow due to the presence of soot particles in the flame. Yellow flames indicate incomplete combustion of hydrocarbon fuels, such as methane, propane, or natural gas. The high carbon content in these fuels leads to the formation of soot, which emits visible light.

2. Smoky Luminous Flame: This type of flame is characterized by a significant amount of black smoke and soot production. It is commonly observed in poorly adjusted or malfunctioning burners or engines. The excessive presence of unburned fuel in the flame results in incomplete combustion and the emission of dark smoke particles.

3. Orange Luminous Flame: An orange flame indicates a higher combustion temperature compared to a yellow flame. It is often seen in more efficient burners or when burning fuels with a higher carbon content, such as oil or diesel. The higher temperature helps in burning more of the carbon particles, reducing the amount of soot and making the flame appear less yellow.

4. Blue Luminous Flame: A blue flame is typically associated with complete combustion. It indicates efficient burning of fuel, resulting in minimal soot formation. Blue flames are commonly observed in gas burners or Bunsen burners. The blue color is a result of the combustion of gases, such as methane, in the presence of sufficient oxygen.

It's important to note that the luminosity of a flame can vary depending on factors such as fuel-air mixture, combustion temperature, and the presence of impurities. Achieving complete combustion and minimizing the production of soot is desirable for efficient and cleaner burning processes.

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Answer:

\(\Delta T=18.24\°C\)

Explanation:

Hello,

In this case, since the equation for computing the heat in terms of mass, specific heat and temperature change is:

\(Q=mCp\Delta T\)

For the given heat and mass, and considering the specific heat of iron to be 0.444 kJ/(kg°C), the resulting temperature change is:

\(\Delta T=\frac{Q}{mCp}=\frac{97.2kJ}{12.0kg*0.444\frac{kJ}{kg\°C}}\\ \\\Delta T=18.24\°C\)

Best regards.

Answer:

C. How the substance behaves in the presence of an acid.

Explanation:

Have a great day

Chemical properties can be defined as the ones that describe a substance's ability to undergo chemical changes.

Physical properties can be defined as the ones that are measured and observed without actually changing the substance's identity.

Among the given options, the color, the hardness, and the behavior of a substance in the presence of a magnet are all examples of physical properties.

However, the behavior of a substance in the presence of an acid is an example of chemical property.

Hence, the correct answer is option c.

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Answer: D 45.1

Explanation:

100/106.441 x(3/2) x (31.9988) = 45.1

106.441 is the molar mass of NaClO3 from the periodic table

31.9988 is the molar mass of O2 from the periodic table

Answer:

\(d.) \: E = hf\)

Explanation:

I hope thks helps you!

Reactions are balanced by equating the right and the left side by stoichiometry coefficients. The redox reactions are balanced and corrected by simplifying the numbers.

A redox reaction is a depiction of the oxidation and the reduction of the reaction that shows the loss and the gain of the electrons by the chemical species.

The oxidation half-reaction:

Mg  →  Mg²⁺ + 2e⁻

The reduction half-reaction:

2Au + 2 e⁻ → 2 Au

The overall balanced reaction is:

Mg(s) + 2Au⁺ (aq)  → Mg²⁺ (aq) + 2Au(s)

Therefore, the reaction is balanced by the oxidation and the reduction halves.

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Answer:

\(t=9.7s\)

Explanation:

Hello,

In this case, we have a second order kinetics given the second power of the concentration of chlorine (V) oxide in the rate expression, thus, the integrated equation for the concentration decay is:

\(\frac{1}{[Cl_2O_5]}=kt+\frac{1}{[Cl_2O_5]_0}\)

Thus, the final concentration for a 94% decrease is:

\([Cl_2O_5]=0.600M-0.600M*0.94=0.036M\)

Therefore, we compute the time for such decrease:

\(kt=\frac{1}{[Cl_2O_5]}-\frac{1}{[Cl_2O_5]_0}=\frac{1}{0.036M}-\frac{1}{0.60M} =26.1M^{-1}\)

\(t=\frac{26.1M^{-1}}{k}= \frac{26.1M^{-1}}{2.7M^{-1}*s^{-1}}\\\\t=9.7s\)

Regards.

The heat capacity of the entire assembly is 4019.4 joules per degree Kelvin.

To calculate the heat capacity of the entire assembly, we need to consider the heat capacities of the metal parts and the oil separately, and then sum them up.

The heat capacity of the metal parts is given as 925.0 J/K. This means that for every 1 degree Kelvin (or Celsius) increase in temperature, the metal parts can absorb or release 925.0 joules of heat.

The oil has a specific heat of 2.814 J/g K. This means that for every 1 gram of oil and 1 degree Kelvin increase in temperature, it can absorb or release 2.814 joules of heat.

Given that there are 1100 grams of oil in the calorimeter, we can calculate the heat capacity of the oil as follows:

Heat capacity of oil = specific heat of oil × mass of oil

= 2.814 J/g K × 1100 g

= 3095.4 J/K

To find the heat capacity of the entire assembly, we sum the heat capacities of the metal parts and the oil:

Heat capacity of entire assembly = heat capacity of metal parts + heat capacity of oil

= 925.0 J/K + 3095.4 J/K

= 4019.4 J/K

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The balanced chemical equation for the combustion of propane with oxygen is: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

To balance the equation, first balance the carbon atoms on both sides of the equation. There are three carbon atoms in the propane molecule and three in the carbon dioxide molecule, so balance the carbon atoms by putting a coefficient of 3 in front of the CO₂ molecule.

C3H8 + 5O2 → 3CO₂

Next, balance the hydrogen atoms. There are eight hydrogen atoms in the propane molecule and four in the water molecule, so balance the hydrogen atoms by putting a coefficient of 4 in front of the H₂O molecule.

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

Finally, balance the oxygen atoms. There are five oxygen atoms on the left side and 10 on the right side, so balance the oxygen atoms by putting a coefficient of 5 in front of the O₂ molecule.

Therefore, the correct whole number coefficient for propane, C3H8, is 1.

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The balanced chemical equation for the decomposition of aspirin (acetylsalicylic acid) is:

\(2C_{9}H_{8}O_{4} (aspirin) → 2C_{7}H_{6}O_{3} (salicylic acid) + 2CO_{2} (Carbon dioxide) + H_{2}O (water)\)

In this reaction, the aspirin molecule breaks down into salicylic acid, carbon dioxide, and water. The reaction is typically catalyzed by heat or exposure to acidic or basic conditions.

Aspirin, or acetylsalicylic acid, contains ester functional groups that can undergo hydrolysis. Under suitable conditions, the ester bond in aspirin is cleaved, leading to the formation of salicylic acid, which is the primary decomposition product. Additionally, carbon dioxide and water are released as byproducts of the reaction.

The balanced equation shows that for every two molecules of aspirin, two molecules of salicylic acid, two molecules of carbon dioxide, and one molecule of water are formed. Understanding the decomposition of aspirin is important in pharmaceutical and chemical industries to ensure the stability and shelf-life of the compound, as well as to study its breakdown products and potential side reactions.

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Tamika claims that the area was once submerged in water, indicating that she is researching the rock formations in an attempt to understand the geological history of the area.

Rock strata reveal important details about Earth's ancient habitats, including whether or not any bodies of water were present. By evaluating the characteristics of sedimentary rocks, such as their composition, texture, and the existence of specific fossils or sedimentary structures, Tamika can draw inferences about the past conditions of the region. Indicators indicating the area was originally submerged under water include the presence of marine fossils, wave patterns, or cross-bedding in rock layers.

Overall, Tamika's analysis of the rock layers sheds light on the region's geological past, including the presence of water and changes in sea level over time.

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