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26 September, 04:13

Calcium reacts with the oxygen in the air, forming calcium oxide. write the balanced chemical equation for this reaction. what is the sum of the coefficients?

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  1. 26 September, 04:42
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    Calcium react with oxygen to form calcium oxide that is quicklime or burnt lime which is white at room temperature

    The balanced chemical equation is

    2Ca (s) + O2 (g) - - - >2CaO (S) - a white solid at room temperature

    2 moles of Ca reacted with 1 mole of O2 while to form 2 moles of CaO

    hence the sum coefficient = 2+1+2=5
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