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9 August, 09:21

CH4 + 2O2 → CO2 + 2H2O The number in front of a compound in a balanced chemical equation is known as a (n) A) charge. B) coefficient. C) exponent. D) subscript.

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  1. 9 August, 12:59
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    The numbers in front of a compound is called a subscript. It shows how many atoms of that specific element it is next two that is involved in the reaction or is in that compound.

    The answer is then D.

    Coefficient is found behind the compounds, the charges are written above.
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