Essential Chemistry for IGCSE - Chemical Calculations (Section 4 - No. 4)
What does it mean for a substance to be 'pure' in a chemical context?
It contains the maximum amount of a specific compound.
It is entirely composed of a single compound or element.
It is mixed with other substances.
It is a mixture of many different compounds.
Explanation
A pure substance is only composed of one element or compound.
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