AnswersChemistryRedox and Nuclear Chemistry

Redox and Nuclear Chemistry — Test Answers

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Consider the incomplete equation. 2 to the 4th power He plus 2 to the 4th power He rightarrow ? If this equation was completed, which statement would it best support?

A
Nuclear fusion produces elements that are heavier than helium.
B
Nuclear fission produces elements that are lighter than helium.
C
Nuclear fission produces elements that are heavier than helium.
D
Nuclear fusion produces elements that are lighter than helium.
23

Which represents a balanced nuclear equation?

A
11 to the 23th power Na rightarrow 12 to the 24th power Mg plus 1 to the 1th power cap h
B
13 to the 24th power Al rightarrow 12 to the 24th power Mg plus negative 1 to the 0 power e
C
12 to the 23th power Mg rightarrow 12 to the 24th power Mg plus 0 to the 1th power n
D
11 to the 24th power Na rightarrow 12 to the 24th power Mg plus negative 1 to the 0 power e
24

Many factors would bring advantages when using fuel cells in cars, but which factor presents a drawback?

A
greenhouse gas emissions
B
fuel consumption
C
reliance on petroleum products
D
hydrogen storage

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