i want all the answers of ch is matter around us pure ? not t.b or in text i want answers of activities 2.1 to 2.10 please help
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Explanation:
A substance is a pure single form of matter. It cannot be separated into other kinds of matter by any physical process. For example: sugar, sodium chloride.
Concept insight: In this answer, you should write the definition of substance and give at least two examples
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