Essential Chemistry for IGCSE - Chemical Calculations (Section 3 - No. 41)
How does the presence of impurities affect the purity of a chemical sample?
Impurities increase the purity of a chemical sample.
Impurities have no effect on the purity of a chemical sample.
Impurities decrease the purity of a chemical sample.
Impurities make the reaction faster.
Explanation
Impurities decrease the purity.
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