How can you tell if a chemical change has occurred?

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asked Mar 4, 2019 17.1k views

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Tgoossens · Answer 1 · 2019-03-08T14:21:24+0000

You can tell if a chemical reaction has taken place when one or more of the following things happen: There has been a colour change inside the reaction flask. A gas has formed. Usually we know a gas has formed when we can see bubbles

How can you tell if a chemical change has occurred?

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