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A b or c or d please help

A b or c or d please help-example-1

2 Answers

3 votes

Answer:

It could be that the mixture became warm.

Step-by-step explanation:

User Maher Nabil
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6 votes

It would be B. the mixture became warm, as a change in temperature is certain evidence that a chemical reaction has taken place.

User Misantorp
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