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Questions and Answers
Which of the following best describes a physical change?
Which of the following best describes a physical change?
- A change that only affects the form of a substance (correct)
- A change that alters the chemical composition of a substance
- A change that involves the combination of two or more substances
- A change that breaks down a substance into simpler compounds
Which of the following is an example of a physical property?
Which of the following is an example of a physical property?
- Decomposing
- Melting (correct)
- Reacting
- Burning
What is the main difference between a physical change and a chemical change?
What is the main difference between a physical change and a chemical change?
- Physical changes only affect the form of a substance, while chemical changes alter its physical properties
- Physical changes involve the formation of new substances, while chemical changes do not
- Physical changes are reversible, while chemical changes are irreversible
- Physical changes alter the chemical composition of a substance, while chemical changes do not (correct)
Which of the following is an example of a physical change that can be reversed?
Which of the following is an example of a physical change that can be reversed?
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Can physical changes be used to separate compounds into chemical elements?
Can physical changes be used to separate compounds into chemical elements?
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