HELP DUE IN 3 MINUTES :(

Based on the information provided, we have a reaction between hydrogen iodide (HI) gas and hydrogen gas (H₂) to form iodine gas (I₂). The equilibrium is represented by the equation:

2HI(g) = H₂(g) + I₂(g)

The concentration values given in the table correspond to the concentrations of H₂ and HI at different times.

a) From t=0 s to t=5 s: Without the specific graph mentioned in Figure 7.10, it is difficult to provide a precise explanation of the physical situation in the container during this time period. However, based on the equilibrium reaction given, we can make some general observations. At the start (t=0 s), the concentrations of H₂ and HI may be high. As time progresses, the reaction proceeds, and the concentrations of H₂ and HI may decrease while the concentration of I₂ increases. The specific behavior will depend on the rate of the forward and reverse reactions.

b) External factor altered at t=5 s: To bring about a change in the shape of the graph at t=5 s, some external factor must have been altered. The most likely factor is the total pressure within the container. Since the reaction involves gases, changes in pressure can affect the equilibrium position. However, according to the information given, a change in pressure will not affect equilibrium in this case since the number of moles of gas is the same on both sides of the equation. Therefore, if the shape of the graph changes at t=5 s, some other external factor, such as temperature or the addition of a catalyst, must have been altered.

c) Calculation of K at t=3 s: The equilibrium constant (K) can be calculated at any given time using the concentrations of the reactants and products. However, the concentrations of H₂ and HI at t=3 s are not provided in the information given. Without the necessary data, it is not possible to calculate K at t=3 s.

Lastly, the statement "1 dm³ COCI, decomposes" seems incomplete. If you provide additional information or clarify the question, I'll be happy to assist you further.

Explanation:

The elements Fluorine (F),Chlorine (Cl) and Iodine (I) are all part of the same Group ( i.e, Group 17 ) on the periodic table.

Answer:

Group

Explanation:

When an acid is added to water, hydronium ions are formed.

What happens when the acid is added to water?

The acid has the ability to give protons that is hydrogen ions. When acid is added to water, water acts as base and takes up the protons released by the acid and forms hydronium ions that is H3O+ ions.

This process is exothermic in nature that is it releases heat. So acid is always added to water and not water to acid.

Therefore, when an acid is added to water, it gives hydronium ions in the water.

To learn more about the reaction of acids in water from the given link https://brainly.com/question/15215343

#SPJ13

To determine the temperature of the air inside the tire when the pressure increases to 87.3 kPa, we can use the ideal gas law equation:

PV = nRT

Where:

P = pressure

V = volume

n = number of moles

R = gas constant

T = temperature

Assuming the volume of the tire remains constant, we can rearrange the equation as follows:

P₁/T₁ = P₂/T₂

Where:

P₁ = initial pressure (82.0 kPa)

T₁ = initial temperature (26.0 °C + 273.15 K) [converting Celsius to Kelvin]

P₂ = final pressure (87.3 kPa)

T₂ = final temperature (unknown)

Substituting the values into the equation:

82.0 kPa / (26.0 °C + 273.15 K) = 87.3 kPa / T₂

Now, let's solve for T₂:

T₂ = (87.3 kPa * (26.0 °C + 273.15 K)) / 82.0 kPa

Calculating the expression:

T₂ ≈ 299.19 K

To convert this temperature back to Celsius:

T₂ ≈ 299.19 K - 273.15 ≈ 26.04 °C

Therefore, the temperature of the air inside the tire, when the pressure increases to 87.3 kPa, is approximately 26.04 °C.

To know more about pressure:

https://brainly.com/question/30673967

#SPJ1

Answer:

\(m_{O_2}=120gO_2\)

Explanation:

Hello!

In this case, since the decomposition of potassium chlorate is:

\(2KClO_3\rightarrow 2KCl+3O_2\)

We can see a 2:3 mole ratio between potassium chlorate and oxygen (molar mass 32.0 g/mol), thus, via stoichiometry, we compute the mass of oxygen that are produced by the decomposition of 2.50 moles of this reactant:

\(m_{O_2}=2.50molKClO_3*\frac{3molO_2}{2molKClO_3} *\frac{32.0gO_2}{1molO_2}\\\\m_{O_2}=120gO_2\)

Best regards!

The original function f(x) = 1/x becomes g(x) = 1/(x+4) - 3 after the transformation.

The correct transformation function that reflects a shift of 4 units to the left and 3 units down is g(x) = f(x+4) - 3.

This is because, in function notation, adding to the input value inside the function (x+4) shifts the function to the left, while subtracting from the output of the function (-3) shifts it down.

So, the original function f(x) = 1/x becomes g(x) = 1/(x+4) - 3 after the transformation.

Read more about transformation functions here:

https://brainly.com/question/10904859

#SPJ1

Answer:

D coarse texture

Explanation:

An igneous rock floats because air bubbles became trapped when molten material erupted from an underground volcano. This rock can be accurately described as extrusive and the correct option is option 2.

Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface. Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies.

Igneous rocks can be easily identified with their texture, density, colour, and mineral composition. Its texture depends on the shape, size, time period to cool down and solidify, and the arrangement of crystals in the rock.

Therefore, an igneous rock floats because air bubbles became trapped when molten material erupted from an underground volcano. This rock can be accurately described as extrusive and the correct option is option 2.

Lean more about Igneous rocks, here:

https://brainly.com/question/23555197

#SPJ5

This isn't a Chemistry question. You might have better luck getting an answer if you posted under Geography.

Taking into account the reaction stoichiometry, 2.713 grams of aspirin are formed when 2.08 grams of salicyclic acid reacts.

In first place, the balanced reaction is:

C₄H₆O₃ + C₇H₆O₃ (Salicyclic Acid) →C₉H₈O₄ (aspirin) + C₂H₄O₂

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:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: if by reaction stoichiometry 138 grams of salicyclic acid form 180 grams of aspirin, 2.08 grams of salicyclic acid form how much mass of aspirin?

\(mass of aspirin=\frac{2.08 grams of salicyclic acidx 180 grams of aspirin}{138 grams of salicyclic acid}\)

mass of aspirin= 2.713 grams

Then, 2.713 grams of aspirin are formed when 2.08 grams of salicyclic acid reacts.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

Answer:

The answer is C.

Explanation:

We are given: H3O+ = 5.29 * 10 ^ -10

We use the pH formula to find pH:

pH = -log[H3O+]

= -log[5.29 * 10 ^ - 10]

= 9.28

Volume and pressure are the properties of the gas that are related by Boyle's law of the ideal gas equation.

Boyle's law is the gas law that gives the relation between the pressure and the volume of the gas at constant moles and temperature conditions. The law is given as,

PV = k (k = constant)

Here P is the pressure and V is the volume of the ideal gas.

From the law, it can be stated that the pressure of the gas is in inverse relation to the volume of the gas. Hence increase in volume decreases the pressure and vice versa.

Therefore, the inverse relationship between the pressure and volume is given by Boyle's law.

Learn more about Boyle's law here:

https://brainly.com/question/1190311

#SPJ1

Answer:

Both protons and neutrons have the same mass, 1.67*10^-24 grams. This is one Dalton.

Explanation:

An atom is composed of protons, electrons and neutrons. The nucleus contains protons and neutrons and they are collectively called nucleons. The mass of one proton is 1.67 × 10⁻²⁷ kg.

The particles which are smaller in size than the size of an atom are called the subatomic particles. An atom contains three sub - atomic particles. They are protons, neutrons and electrons. The positively charged sub atomic particles are called the protons.

In an atom the number of protons and electrons are equal. So the atom is electrically neutral in nature. The mass of one proton is 1.67 × 10⁻²⁷ kg.

To know more about protons, visit;

https://brainly.com/question/17298811

#SPJ2

Answer:

The Correct answer is B

activation energy of the reaction

or

speeds up the reaction

Answer:

See explanation

Explanation:

A saturated solution is a solution that contains just as much solute as it can normally hold at that temperature.

If the temperature is cooled and  crystals of copper sulphate are formed in the solution, then the solution is no longer saturated because some solute are now leaving the solution.

b) percent by mass = mass of solute/mass of solution * 100

percent by mass = 20%

mass of solute = x g

mass of solution =  80 g​

20 = x/80 * 100

1600 = 100x

x = 1600/100

x = 16 g

AnSweR: 10

ExplanAtion: My random idiot friend just told me

The amount of gold that can be produced from 213.46g AuPO₄ is equal to 143.7g.

A mole is a standard unit that can be used to determine the huge number of quantities of ions,  atoms, molecules, or other particular particles. The mass of the 1 mole of any element is known as atomic mass (in grams) and the mass of one mole of any compound is called molar mass.

The number of units in one mole was found to be approximately 6.023 × 10 ²³  also called Avogadro’s constant.

Given, the mass of the AuPO₄  = 213.46 g

The molar mass of the AuPO₄ = 197 + 31 + 4(16) = 292 g/mol

The number of moles of the AuPO₄  = 213/292 = 0.729 mol

If the mole of AuPO₄  will produce one mole of the Au.

Then 0.729 mol of the AuPO₄ will produce Au = 0.729 mol

The mass of the Au (in grams) = 0.729 ×197 = 143.7 g/mol

Learn more about the mole, here:

brainly.com/question/26416088

#SPJ1

Answer:

b

Explanation:

Answer:

4Al + 3O₂ →   2Al₂O₃

Explanation:

    4Al + 3O₂ →   2Al₂O₃

Only this reaction above obeys the law of conservation of mass. The others flout the rule.

The law of conservation of mass states that "matter is neither created nor destroyed in a chemical reaction but are simply transformed from one form to another".

By this law, the number of atoms on both sides of expression must be the same;

                                                    Number of atoms

Elements              Left hand side                                 Right hand side

  Al                                    4                                                     4

  O                                    6                                                    6

An atom adjustments from a floor nation to an excited nation via way of means of taking over electricity from its environment in a method referred to as absorption.

The electron absorbs the electricity and jumps to a better electricity level. In the opposite method, emission, the electron returns to the floor nation via way of means of freeing the greater electricity it absorbed.When an atom absorbs electricity, the electrons circulate from their floor nation to an excited nation.

When an atom emits electricity, the electrons circulate from a(n) excited nation to their floor nation and deliver off electricity. When an atom absorbs electricity, the electrons circulate from their floor nation to an Excited nation. whilst an atom emits electricity, the electrons circulate from an excited nation to their floor nation and deliver off electricity(radiation).

Read more about atom:

https://brainly.com/question/26952570

#SPJ4

Answer:

............................................................................................................................

Explanation:

because ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Answer:

Rutherford's model of the atom included the nucleus, something lacking in Thomson's model. Rutherford's inclusion of the nucleus came about after his discovery of the nucleus of the atom in 1911. He was testing J.J. Thomson's Plum Pudding model by directing a beam of alpha particles toward a thin sheet of gold foil.

Pls Mark As Brainliest

Answer

A. Endothermic reaction

Explanation

The type of reaction represented by B is endothermic reaction.

Answer:

nonmetal

________ is an atom that gains electrons; it's valence electrons is similar to a noble gas.

Explanation:

Because non metal like chlorine gain one elctron and attain electronic configuration of noble gas Argon

The mass of hydrogen needed to produce 51.0 grams of ammonia is  ≈ 9.07 grams.

To determine the mass of hydrogen required to produce 51.0 grams of ammonia (NH3) using the Haber process, we need to calculate the stoichiometric ratio between hydrogen and ammonia.

From the balanced chemical equation:

3 H₂(g) + N₂(g) → 2 NH₃(g)

We can see that for every 3 moles of hydrogen (H₂), we obtain 2 moles of ammonia (NH₃).

First, we need to convert the given mass of ammonia (51.0 grams) to moles. The molar mass of NH₃ is 17.03 g/mol.

Number of moles of NH₃ = Mass / Molar mass

                     = 51.0 g / 17.03 g/mol

                     ≈ 2.995 moles

Next, using the stoichiometric ratio, we can calculate the moles of hydrogen required.

Moles of H₂ = (Moles of NH₃ × Coefficient of H₂) / Coefficient of NH₃

           = (2.995 moles × 3) / 2

           ≈ 4.493 moles

Finally, we can convert the moles of hydrogen to mass using the molar mass of hydrogen (2.02 g/mol).

Mass of H₂ = Moles × Molar mass

          = 4.493 moles × 2.02 g/mol

          ≈ 9.07 grams

Therefore, approximately 9.07 grams of hydrogen is needed to produce 51.0 grams of ammonia in the Haber process.

Know more about the mass of hydrogen here:
https://brainly.com/question/14083730

#SPJ8

1. The energy level of the reactants is lower than that of the products. - Endothermic

2. The combustion of wood provides energy - Exothermic

3. A reaction releases 101 J. - Exothermic

What is an Endothermic?

An endothermic process or reaction is a chemical or physical process that absorbs heat from the surroundings. In an endothermic process, energy is required to break the bonds in the reactants and form new bonds in the products. As a result, the temperature of the surroundings decreases, and the process feels cold to the touch. Examples of endothermic processes include melting ice, cooking an egg, and evaporating water.

What is an Exothermic?

An exothermic process or reaction is a chemical or physical process that releases heat into the surroundings. In an exothermic process, energy is released as the bonds in the reactants are broken and new bonds are formed in the products. As a result, the temperature of the surroundings increases, and the process feels warm to the touch. Examples of exothermic processes include burning a candle, combustion reactions, and the reaction between baking soda and vinegar.

To know more about Endothermic, visit:

https://brainly.com/question/23184814

#SPJ1

Answer:

See Explanation

Explanation:

Both oxygen and dinitrogen (1) oxide are known to rekindle a glowing splint. However, oxygen is an odorless gas while dinitrogen (1) oxide has a faint smell and has an effect on the central nervous system.

Also, the combustion of dinitrogen (1) oxide produces brown fumes of nitrogen IV oxide.

Finally, when dinitrogen (1) oxide and oxgen are both heated with copper, residual nitrogen gas is left with dinitrogen (1) oxide while no residual gas is left with oxygen.

We study the reactions that chemists utilise to create bizarre carbon-based structures in organic chemistry.

The study of the makeup, properties, and responses of organic compounds including organic materials, or matter in any of its many forms that contains carbon atoms, is the subject of the branch of science known as organic chemistry. Their structural formula is determined by study of structure.

We will study the reactions that chemists utilise to create bizarre carbon-based structures in organic chemistry, in addition to the analytical techniques used to characterise them. We'll also consider the molecular reaction mechanisms that are driving those reactions.

To know more about organic chemistry, here:

https://brainly.com/question/14623424

#SPJ1

The answer is:

C.(mitochondria)

I took the test, hope this helps!

Answer:

A

Explanation:

The Law of Conservation of Matter says that the amount of matter (mass) stays the same, even when matter changes its form.