What element is Co

2H

2H + O ------ 2HO

Heterogeneous mixture

homogeneous mixture

6CO2 + 6H2O ------ C6H12O6 + 6O2 Does this chemical equation follow the law of conservation of mass?

CuO

6CO2 + 6H2O ------ CHO + 6O2 How many compounds are on the product side?

what do we do if there is no number where the subscript goes?

elements

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