3
QuizMultiple Choice

1.2 Chemical Changes

Question 3 • AISD-SCI-TX- 6th grade - 1st six weeks CR _ Summer 2026

Which statement describes one feature of chemical changes?

Answer
A
They never change a substance’s properties.
B
They change a substance’s identity.
C
They can usually be reversed.
D
They keep a substance’s arrangement of atoms the same.

Explanation

A chemical change rearranges atoms and forms one or more new substances, so the substance’s identity changes. For example, when iron rusts, it becomes iron oxide with different properties. Therefore, the correct choice is “They change a substance’s identity.”

AI-written and checked against the verified answer.

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