AnswersFoothill-B Period-Chemistry-2627BBalancing Oxidation-Reduction Equations

Balancing Oxidation-Reduction Equations Answers

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1
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A
spontaneous
B
nonspontaneous
2
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Question illustration
A
spontaneous
B
nonspontaneous
3

Question text not available

Question illustration
A
spontaneous
B
nonspontaneous
4

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

Question illustration
A
Reaction A has the higher Grxn.
B
Reaction B has the higher Grxn.
C
They are the same.
D
There is not enough information to tell.
5

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

A
burning gasoline in a car engine
B
hard-boiling an egg
C
thrusting a rocket into space
7

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

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.
8

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

A
using larger pieces of the solid
B
using a more concentrated potassium hydroxide solution
C
adding water to the system
9

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

Question illustration
A
increased rate
B
decreased rate
C
no change in rate
10

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

Question illustration
A
increased rate
B
decreased rate
C
no change in rate
11

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.

Question illustration
A
using hot hydrochloric acid solution
B
adding hot water to the solution
C
using magnesium powder instead of a large piece of magnesium
D
increasing pressure on the system
12

Refrigerate food to keep it from spoiling.

A
Particles collide more frequently.
B
Particles collide less frequently.
C
Particles collide with more force.
D
Particles collide with less force.
E
Particles do not collide.
13

Grind a metal into a fine powder.

A
Particles collide more frequently.
B
Particles collide less frequently.
C
Particles collide with more force.
D
Particles collide with less force.
E
Particles do not collide.
14

Grind a metal into a fine powder.

A
Particles collide more frequently.
B
Particles collide less frequently.
C
Particles collide with more force.
D
Particles collide with less force.
E
Particles do not collide.
16

AgNO3(aq) + Cu(s) CuNO3(aq) + Ag(s)

Question illustration
A
increased rate
B
decreased rate
C
no change in rate
17

Na2CO3(s) + 2HCl(aq) CO2(g) + H2O(l) + 2NaCl(aq)

Question illustration
A
increased rate
B
decreased rate
C
no change in rate
18

Add inert water to a reaction solution.

A
Particles collide more frequently.
B
Particles collide less frequently.
C
Particles collide with more force.
D
Particles collide with less force.
E
Particles do not collide.
19

Raise the boiling point of water with a pressure cooker.

A
Particles collide more frequently.
B
Particles collide less frequently.
C
Particles collide with more force.
D
Particles collide with less force.
E
Particles do not collide.

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