Chemistry: Matter and Change

Section 3: Nuclear Reactions

Self Check Quizzes

1
If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?
A)2
B)4
C)8
D)16
2
In a nuclear reactor, what is the heat generated by the nuclear fission reaction used for?
A)fusing other unstable isotopes together
B)generating steam
C)freezing water
D)making building products
3
The reaction products of nuclear fusion are __________ than the reactants.
A)more massive
B)less massive
C)less radioactive
D)cooler
4
What do nuclear power plants and fossil-fuel burning power plants have in common?

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A)Both burn their fuel.
B)Both produce CO2 as a waste gas.
C)Both use heat to boil water.
D)Both use control rods to keep the reaction from getting too hot.
5
Which is not a potential advantage of nuclear fusion?

4H yields 2 beta + He + energy
A)Hydrogen fuel is abundant.
B)Fusion produces large amounts of energy.
C)Fusion requires extremely high energies to initiate and sustain.
D)Fusion reaction products are not generally radioactive.
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