Answers2026-2027_MDCPS_2003345_Chemistry_1_B-CROxidation-Reduction

Oxidation-Reduction — Unit test Answers

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21
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If each fission reaction in a nuclear reactor emits three neutrons, how many neutrons are produced from three fission reactions?

A
one
B
three
C
six
D
nine
22
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According to most scientists, cold fusion

A
will not be a practical source of energy on Earth.
B
would be a practical source of energy on Earth if it were less expensive.
C
will be a practical source of energy on Earth within the next few decades.
D
will always continue to be a practical source of energy on Earth.
23

Which answer choice best explains why nuclear reactions release more energy than chemical reactions?

A
Electrostatic forces of repulsion are thousands of times stronger than gravitational forces.
B
Gravitational forces are thousands of times stronger than electrostatic forces of repulsion.
C
The force that binds together protons and neutrons is stronger than the force that attracts and repels protons and electrons.
D
The force that attracts and repels protons and electrons is stronger than the force that binds together protons and neutrons.
24

These statements describe three different reactions. 1 - An atom shares electrons with another atom. 2 - The nucleus of an atom is split apart. 3 - An atom gains an electron from another atom. Which reaction(s) most likely release the greatest amount of energy?

A
1
B
2
C
1 and 3
D
2 and 3
25

Which is most likely why many scientists reject the cold fusion theory?

A
There is too much waste involved in the process.
B
Cold fusion experiments have been conducted at room temperature only.
C
The process does not produce enough energy to meet the needs of modern humans.
D
The original results have not been replicated consistently and reliably.

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