Chemistry, 03.04.2020 21:23 oliviablue7535

Which of these is a sign that a chemical change may have taken place?

A.)A gas is released.

B.)The color changes.

C.)Heat is released.

D.)All of these are signals of a chemical change.

Answers: 2

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Which of these is a sign that a chemical change may have taken place?

A.)A gas is releas...