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How do you know if it is a physical change 2024?
Questioner：Charlotte Bailey 2023-04-20 15:48:03
The most authoritative answer in 2024
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Zoe Martin——Studied at the University of Sydney, Lives in Sydney, Australia.
There are four signs that a chemical reaction has occurred: a change in color, a change in temperature, formation of a gas or formation of a precipitate. A precipitate is a solid that forms when two liquid solutions are mixed. As matter changes in a chemical reaction, it can either absorb or release energy.read more >>+119962023-04-25 15:48:03
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