2
QuizMultiple Choice

Types of Radioactive Decay

Question 2 • 2001310 Earth Science Sem 1 - Reeves

Which statement correctly compares chemical reactions with nuclear reactions?

Answer
A
In chemical reactions, new isotopes are formed. In nuclear reactions, new compounds are formed.
B
Chemical reactions can be represented by balanced equations. Nuclear reactions cannot be represented by balanced equations.
C
In chemical reactions, small amounts of energy can be absorbed or released. In nuclear reactions, changes in energy are much larger.
D
In chemical reactions, only protons and neutrons are affected. In nuclear reactions, only electrons are affected.

Explanation

Chemical reactions rearrange electrons and chemical bonds, so they typically absorb or release relatively small amounts of energy. Nuclear reactions change atomic nuclei and involve much larger energy changes. Thus, the correct statement is that chemical reactions involve smaller energy changes while nuclear reactions involve much larger ones.

AI-written and checked against the verified answer.

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