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STUDY CHECK 9.1 Calculate the total mass of the reactants and the products for the following equation: 2K2O(s) 4K(s) +O2(g)
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Products K2O moles =2 molas mass = 94.2 glmol mass - 2x94.2 = 188.49 Reactants : k moles = 4 molas mass = 4 x 39.09 = 156.36

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