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Chemistry
Kathleen Stephenson
27 February, 19:31
How do you know if a chemical reaction is present
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Johan Pratt
27 February, 20:40
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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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