2
lesson pretestMultiple Choice

Pretest

Question 2 • Chemistry

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

Answer
A
chemical change because the atoms in wood and oxygen are rearranged.
B
chemical change because the atoms in wood change their state.
C
physical change because the atoms in wood are turned into a gaseous product.
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 its atoms are rearranged into new substances, such as carbon dioxide, water vapor, and ash. The atoms themselves are not changed into different atoms or merely shifted into a new state.

AI-written and checked against the verified answer.

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