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21-06-2021
Chemistry

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a reaction of heating patassium permanganate produces potassium manganate, manganese dioxide and oxygen gas. Heat 15.8 g potassium permanganate until no more oxygen gas is given off. The remaining material has a mass of 14.2 g. What mass of oxygen gas was produced in the reaction?

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lizajohn144466666 lizajohn144466666

21-06-2021

Answer : 1.6 g
14.2 + o = 15.8
o = 15.8 - 14.2
o = 1.6

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