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Define / State:
The Empirical formula of an organic compound is CHCl₂. If its relative molecular mass is 168, what is its molecular formula? [At. Wt. C=12, H=1, Cl=35.5]
Choose the substances given in the box below to answer the following questions: Iron, Magnesium sulphite, Zinc, Sodium sulphide, Lead, Ferric chloride, Copper, Ferrous sulphate
State one relevant observation for each of the following:
Name the following:
Give reason for the following:
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