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Which is the most important question for deciding if a chemical reaction has occurred
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Which is the most important question for deciding if a chemical reaction has occurred

User Simon Molloy
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4 votes

Answer:

the answer is Was there any heat energy given off?

Step-by-step explanation:

User Subwaymatch
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A chemical reaction undergoes a chemical change so the question you should ask if a chemical reaction has occurred is "Did a chemical change happened?". Chemical change in a reaction happens when you see bubbles, when the reaction increases or decreases in temperature or a precipitate is formed.
User Kaylie
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