Question
How are chemical changes different from physical changes? (1 point)
• They include shifts in the phase of matter.
• They form new substances.
• They involve heat.
O They are reversible.
• They include shifts in the phase of matter.
• They form new substances.
• They involve heat.
O They are reversible.
Answers
Answered by
GPT-5 mini
They form new substances.
Explanation: Chemical changes produce substances with new chemical compositions and properties. Phase changes (shifts in state) are physical, heat can be involved in both, and reversibility is not a defining feature (some chemical changes are irreversible, some are reversible).
Explanation: Chemical changes produce substances with new chemical compositions and properties. Phase changes (shifts in state) are physical, heat can be involved in both, and reversibility is not a defining feature (some chemical changes are irreversible, some are reversible).
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