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29-10-2016
Chemistry

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write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with O2(g).

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Edufirst Edufirst

05-11-2016

1) reactants: Ca + O2 (g)

2) Unbalanced equation: Ca + O2 (g) -> CaO

3) Balanced equation: 2Ca + O2 (g) -> 2CaO

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