AnswersS1S Chemistry B E4912 - AGLab: Half-Life

Nuclear Fission and Nuclear Fusion Answers

0 verified answers1 views
1
Free Preview

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.
2
Free Preview

Both nuclear fusion and nuclear fission reactions

A
release radioactive waste.
B
involve the splitting of atoms.
C
are utilized in nuclear power plants.
D
release large amounts of energy.
3

Which is a characteristic of nuclear fusion?

A
produces radioactive waste
B
involves the collision of two nuclei
C
commonly used by humans as an energy source
D
requires very little activation energy
4

Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?

A
mc019-1.jpg
Option A
B
mc019-2.jpg
Option B
C
mc019-3.jpg
Option C
D
mc019-4.jpg
Option D
5

Which element is nuclear fusion least likely to produce?

A
hydrogen, which has an approximate mass of 1
B
chlorine, which has an approximate mass of 35
C
argon, which has an approximate mass of 39
D
silicon, which has an approximate mass of 28
6

Which type of reaction does this diagram represent?

Question illustration
A
nuclear fusion because nuclei combine to form a heavy nucleus
B
nuclear fission because an atom is splitting into two large fragments of comparable mass
C
nuclear fusion because a large amount of energy is being released
D
nuclear fission because the resulting products are not radioactive
7

Research into nuclear fusion will likely require a large investment of time and money before it might be used as an energy source. Which statement best describes the benefits that would make the investment worthwhile?

A
Fusion requires a large amount of energy and occurs in stars.
B
Fusion produces large amounts of energy, and the fuel is found on Earth.
C
Fusion produces no radioactive waste, and the fuel is plentiful.
D
Fusion requires little energy to begin and would continue through a chain reaction.
8

How does critical mass play a role in nuclear reactions?

A
It is the minimum amount of material needed to start a fission reaction.
B
It is the minimum amount of material needed to start a fusion reaction.
C
It is the minimum amount of material needed to sustain a fission reaction.
D
It is the minimum amount of material needed to sustain a fusion reaction.
9

Why is it important for scientists to replicate each other’s experiments?

A
to determine if important scientific results are repeatable
B
to help the research of other scientists
C
to determine if slight alterations in the experiment can affect the result
D
to further their own research
10

Which statement is true about this reaction?

Question illustration
A
It is a practical source of energy on Earth.
B
It occurs only outside the solar system.
C
Its product is heavier than each of its reactants.
D
It shows the critical mass of an element.

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

Nuclear Fission and Nuclear Fusion

Quiz
10 verified answers

Nuclear Energy

Quiz
10 verified answers

Reaction Rate