Unit 6 Exam

2

A reaction is most likely to occur when reactant particles collide with

2

Under what conditions will the rate of a chemical reaction always decrease?

2

A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.

Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)

Which set of reaction conditions produces H2 at the fastest rate?

2

Increasing the temperature increases the rate of a reaction by:

2

For the reaction between aluminum metal and copper chloride (CuCl2) that we performed together, what is the reason that breaking a single 5 g piece of aluminum into 25 smaller pieces of aluminum (still with a total mass of 5 g) speeds up the reaction rate.

2

Which solution of CuCl2 will lead to the fastest reaction with aluminum?

An investigation was conducted to study the effect of the concentration of a reactant on the total time needed to complete a chemical reaction. Four trials of the same reaction were performed. In each trial the initial
concentration of the reactant was different. The time needed for the chemical reaction to be completed was measured. The data for each of the four trials are shown in the table below.

Use this data to answer questions 7-9.

2

State the effect of the concentration of the reactant on the rate of the chemical reaction above.

2

Explain your answer to 7 in terms of collision theory.

2

In a different experiment involving the same reaction, it was found that an increase in temperature increased the rate of the reaction. Explain this result in terms of collision theory.

1

How does pressure affect reation rate? Explain this in terms of collision theory

2

Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.

A + B + heat --> C + D

Use the reaction at equilibrium below to answer questions 12 and 13.

2

Which statement regarding this reaction at equilibrium is always true?

2

Unit 6 Exam

A reaction is most likely to occur when reactant particles collide with

Under what conditions will the rate of a chemical reaction always decrease?

A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.

Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)

Which set of reaction conditions produces H2 at the fastest rate?

Increasing the temperature increases the rate of a reaction by:

For the reaction between aluminum metal and copper chloride (CuCl2) that we performed together, what is the reason that breaking a single 5 g piece of aluminum into 25 smaller pieces of aluminum (still with a total mass of 5 g) speeds up the reaction rate.

Which solution of CuCl2 will lead to the fastest reaction with aluminum?

State the effect of the concentration of the reactant on the rate of the chemical reaction above.

Explain your answer to 7 in terms of collision theory.

In a different experiment involving the same reaction, it was found that an increase in temperature increased the rate of the reaction. Explain this result in terms of collision theory.

How does pressure affect reation rate? Explain this in terms of collision theory

Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.

A + B + heat --> C + D

Which statement regarding this reaction at equilibrium is always true?

At constant temperature and pressure, an increase in the concentration of A(g) will cause

A reaction is most likely to occur when reactant particles collide with

Under what conditions will the rate of a chemical reaction always decrease?

A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.

Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)

Which set of reaction conditions produces H2 at the fastest rate?

Increasing the temperature increases the rate of a reaction by:

For the reaction between aluminum metal and copper chloride (CuCl2) that we performed together, what is the reason that breaking a single 5 g piece of aluminum into 25 smaller pieces of aluminum (still with a total mass of 5 g) speeds up the reaction rate.

Which solution of CuCl2 will lead to the fastest reaction with aluminum?

State the effect of the concentration of the reactant on the rate of the chemical reaction above.

Explain your answer to 7 in terms of collision theory.

In a different experiment involving the same reaction, it was found that an increase in temperature increased the rate of the reaction. Explain this result in terms of collision theory.

How does pressure affect reation rate? Explain this in terms of collision theory

Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.

A + B + heat --> C + D

Which statement regarding this reaction at equilibrium is always true?

At constant temperature and pressure, an increase in the concentration of A(g) will cause

Unit 6 Exam

Unit 6 Exam

A reaction is most likely to occur when reactant particles collide with

Under what conditions will the rate of a chemical reaction always decrease?

A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)Which set of reaction conditions produces H2 at the fastest rate?

Increasing the temperature increases the rate of a reaction by:

For the reaction between aluminum metal and copper chloride (CuCl2) that we performed together, what is the reason that breaking a single 5 g piece of aluminum into 25 smaller pieces of aluminum (still with a total mass of 5 g) speeds up the reaction rate.

Which solution of CuCl2 will lead to the fastest reaction with aluminum?

State the effect of the concentration of the reactant on the rate of the chemical reaction above.

Explain your answer to 7 in terms of collision theory.

In a different experiment involving the same reaction, it was found that an increase in temperature increased the rate of the reaction. Explain this result in terms of collision theory.

How does pressure affect reation rate? Explain this in terms of collision theory

Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.A + B + heat --> C + D

Which statement regarding this reaction at equilibrium is always true?

At constant temperature and pressure, an increase in the concentration of A(g) will cause

A reaction is most likely to occur when reactant particles collide with

Under what conditions will the rate of a chemical reaction always decrease?

A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)Which set of reaction conditions produces H2 at the fastest rate?

Increasing the temperature increases the rate of a reaction by:

For the reaction between aluminum metal and copper chloride (CuCl2) that we performed together, what is the reason that breaking a single 5 g piece of aluminum into 25 smaller pieces of aluminum (still with a total mass of 5 g) speeds up the reaction rate.

Which solution of CuCl2 will lead to the fastest reaction with aluminum?

State the effect of the concentration of the reactant on the rate of the chemical reaction above.

Explain your answer to 7 in terms of collision theory.

In a different experiment involving the same reaction, it was found that an increase in temperature increased the rate of the reaction. Explain this result in terms of collision theory.

How does pressure affect reation rate? Explain this in terms of collision theory

Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.A + B + heat --> C + D

Which statement regarding this reaction at equilibrium is always true?

At constant temperature and pressure, an increase in the concentration of A(g) will cause

A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.

Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)

Which set of reaction conditions produces H2 at the fastest rate?

Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.

A + B + heat --> C + D

A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.

Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)

Which set of reaction conditions produces H2 at the fastest rate?

Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.

A + B + heat --> C + D