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An original sample of an unknown potassium chloride/potassium chlorate mixture weighed 1.042 g...

Question:

An original sample of an unknown potassium chloride/potassium chlorate mixture weighed 1.042 g before heating and 0.943 g after heating. How many grams of oxygen were released?

Decomposition Reaction:

Decomposition reaction is defined as the chemical reaction in which a compound upon heating dissociates to give two or more than two new chemical compounds. It is considered as opposed to the combination reaction.

Answer and Explanation: 1

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Potassium chlorate decomposes upon heating to give potassium chloride and oxygen gas. KCl does not go for decomposition reaction.

{eq}2KClO_3 \to...

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Decomposition Reaction: Definition & Examples

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Chapter 3 / Lesson 19
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What is a decomposition reaction? Learn what makes a decomposition reaction unique, as well as characteristics and real world uses.


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