Chemistry

Chemistry, 14.05.2021 14:00, beabivine7023

Potassium chlorate KClO3 decomposes when heated to produce potassium chloride, KCI and oxygen gas If 2.50 grams of KCIO3 were heated in a test tube, how many grams of oxygen has of (O2) should be given off

Please should The before , Change and after please I need to understand this

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