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Given the balanced equation representing a reaction:2KClO3 + energy→2KCl + 3O2 What is the mass of

Given the balanced equation representing a reaction: 2KClO3 + energy→2KCl + 3O2

What is the mass of KCl produced when 24.51 grams of KClO3 reacts completely to produce 9.60 grams of O2? (1) 5.31 g

(2) 14.91 g

(3) 34.11 g

(4) 43.71 g


Solution: According to the conservation of mass, mass of the reactants must be equal to the mass of products. We have all the masses except for KCl. Let's plug and chug: 24.51g = 9.60g + x

x = 14.91 g answer choice 2 is correct

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