6
QuizMultiple Choice

Evidence of Chemical Reactions

Question 6 • CHS Chemistry A

Burning a piece of wood in fire can be best described as a

Answer
A
chemical change because the atoms in wood change their state.
B
physical change because the atoms in wood are turned into a gaseous product.
C
chemical change because the atoms in wood and oxygen are rearranged.
D
physical change because the atoms in wood are turned into black ash.

Explanation

Burning wood is a chemical change because wood reacts with oxygen and forms new substances, such as gases and ash. The atoms are rearranged into different combinations; they do not simply change state or turn into ash through a physical change. Therefore, the best choice is “chemical change because the atoms in wood and oxygen are rearranged.”

AI-written and checked against the verified answer.

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