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28 January, 14:34

How do you know if a chemical reaction is present

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  1. 28 January, 14:36
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    Answer:When two or more reactants are mixed and a change in temperature, color, etc. is noticed, a chemical reaction is probably occurring. However, these are not definite indicators.

    Explanation: In a chemical reaction, there is a change in the composition of the substances. The following are indicators of chemical changes:

    Change in Temperature

    Change in Color

    Noticeable Odor (after reaction has begun)

    Formation of a Precipitate

    Formation of Bubbles
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