Which is the most important question for deciding if a chemical reaction has occurred? Was there a change in the size? Was any heat energy given off? What is the density of the substance? What is the texture of the substance?

Question

Chemistry

Aubree

4 December, 16:55

Which is the most important question for deciding if a chemical reaction has occurred? Was there a change in the size? Was any heat energy given off? What is the density of the substance? What is the texture of the substance?

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Nevaeh Mclaughlin · Answer 1

The most important question for deciding if a chemical reaction has occurred is "was any heat energy given off?" Heat and energy being released is a dead-giveaway indicator that a chemical reaction has occurred by you are converting from one form of energy or matter to another (heat).