jkbaptie jkbaptie

09-03-2021
Chemistry

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Which of the following is an indication of a chemical reaction?
freezing
melting
release of heat
all of the above

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gmcmillian4921 gmcmillian4921

09-03-2021

Answer:

C

Explanation:

A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change.

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