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19 October, 07:29

Why are numbers placed before the elements and molecules in a

chemical equation?

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Answers (1)
  1. 19 October, 07:59
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    the are coefficients for the atom. the tell how many there are.

    Explanation:

    they tell you how many atoms there are of its type.

    ex. 4 C²H³. there are 4 of the c² and h³ (couldn't find a way to use subscript so used the power signs to show.)
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