chemistry

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When potassium chlorate is heated, it decomposes into potassium chloride and oxygen in the reaction 2KCIO3 -> 2KCI + 3O2. How much oxygen is liberated when 50 g of potassium chlorate is heated?

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    figure the moles of potassium chlorate in 50 grams. Then you will get 3/2 moles of oxygen times the moles of KClO3

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