chem

Using the balalnced chemical equation, how many grams of MgO are produced when 31.0 grams of O2 react completely with Mg?

2 Mg + O2 → 2 MgO
Molar Mass
Mg = 24.3 g/mol
O2 = 32.0 g/mol
MgO = 40.3 g/mol

55.7

78.1

89.1

111.3

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