LillejamCath5ya7hue LillejamCath5ya7hue

03-06-2017
Biology

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You are asked to explain what happens to individual atoms when a chemical change takes place in lab you are doing in class. what is the best explanation?

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anonymous79 anonymous79

03-06-2017

The atoms gain or lose valence electrons because a chemical reaction can only take place when an atom donates or receives electrons!

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Can someone please help me? :(