Which of the following is evidence for a chemical reaction?

Name: Which of the following is evidence for a chemical reaction?
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Question

Quizplus · Accepted Answer

All of the options are evidence for a chemical reaction. A gas is often a product of a chemical reaction, an insoluble solid (precipitate) can form when reactants combine and form a solid, a permanent color change indicates a chemical change, and an energy change can occur as a result of the breaking and forming of chemical bonds during a reaction.

Which of the Following Is Evidence for a Chemical Reaction