Question

True or false
1) substances are classified into two groups

Answer 1

Answer:

A substance is simply a pure form of matter. In other words, a substance is matter than contains only one type of atom or molecule. Pure substances can be further divided into two sub-categories: elements and compounds.

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Answer 2

Answer:

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1) substances are classified into two groups

False because Substance are only one type which is pure substance

Example:- Iron