Balancing Oxidation-Reduction Equations

Question 1

Question 1

Revolt · Accepted Answer

A: spontaneous

Question 2

The diagram to the right shows energy for two reactions, A and B.Which reaction has the higher Grxn?

Revolt · Accepted Answer

C: They are the same.

Question 3

Based on your experience, which reactions are likely to be self-sustaining? Check all that apply.

Revolt · Accepted Answer

A: burning gasoline in a car engine; C: thrusting a rocket into space

Question 4

The diagram shows three Maxwell-Boltzmann frequency graphs.Which graph represents the system with the highest temperature?

Revolt · Accepted Answer

C: blue

Question 5

Which condition will cause a reaction to occur? Check all that apply.

Revolt · Accepted Answer

A: Particles and molecules must collide.; B: Collisions must be energetic enough to overcome the activation barrier.; C: Collisions must be properly oriented for the relevant parts to react.; D: The energy needed to overcome the activation energy comes from the kinetic energy of random collisions.

Question 6

Which action would most likely increase the reaction rate for this step?

Revolt · Accepted Answer

B: using a more concentrated potassium hydroxide solution

Question 7

N2(g) + 3H2(g) 2NH3(g)

Revolt · Accepted Answer

A: increased rate

Question 8

2SO3(g) 2SO2(g) + O2(g)

Revolt · Accepted Answer

B: decreased rate

Question 9

Magnesium reacts with hydrochloric acid to form hydrogen gas and magnesium chloride:Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g)Which actions would increase the rate of reaction? Check all that apply.

Revolt · Accepted Answer

A: using hot hydrochloric acid solution; C: using magnesium powder instead of a large piece of magnesium

Question 10

Refrigerate food to keep it from spoiling.

Revolt · Accepted Answer

D: Particles collide with less force.

Balancing Oxidation-Reduction Equations Answers

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