Question

7.6 g of potassium chlorate on heating produced2.8 g of oxygen. What is the mass of residue left behind?
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Answer 1

Answer:

The mass of the residue will be 4.8 g .

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Answer 2

Explanation:

mass of potassium chlorate - 7.6 g

mass of oxygen - 2.8 g

mass of residue - 7.6 - 2.8

- 4.8 g