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The Preparation of Oxygen by the Thermal Decomposition of Potassium

Question 108

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The preparation of oxygen by the thermal decomposition of potassium chlorate is shown below.
2 KClO3(s) The preparation of oxygen by the thermal decomposition of potassium chlorate is shown below. 2 KClO<sub>3</sub>(s) 2 KCl(s)+ 3 O<sub>2</sub>(g) In this reaction the atom that is reduced is ________,which undergoes an oxidation number change from ________ to ________.
2 KCl(s)+ 3 O2(g)
In this reaction the atom that is reduced is ________,which undergoes an oxidation number change from ________ to ________.

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