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which of the following is NOT a clue that a chemical reaction has taken place?

A:release of gas
B:color change
C:mixing of the reactants
D:formation of a precipitate

Respuesta :

ofkdae

Answer:

A

Explanation:

My reason is color change is an example

Mixing reactants is a chemical change clue

formation of precipitate is a clue

so that leaves A

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