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when looking at a chemical equation what are the evidences that a chemical reaction has occured. Or what is the evidence that it has not occured

thanks:):) <3

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DrBob222

DrBob222 answered
13 years ago

I look for the following to determine if a reaction will occur:

a. a precipitate (insoluble material) is formed.
b. a gas is formed.
c. a slightly ionized material is formed (for example, H2O or acetic acid).

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