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Which of these is an indication that a chemical reaction has occurred? A.The melting of a substance B.The boiling of a substance C. The formation of precipatation D The freezing of a substance Please &
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Which of these is an indication that a chemical reaction has occurred?

A.The melting of a substance
B.The boiling of a substance
C. The formation of precipatation
D The freezing of a substance
Please & Thank you!

User Mikewied
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1 Answer

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C. The formation of precipatation
User Fuzzyman
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