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Write the molecular formulae of the following compounds. 1)Potassium Chloride 2)irin Sulphide 3)Hydrogen lodide4) Skdium Chlorids 5) Hydrochloric acid |
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Answer» ong>ANSWER: A chemical formula is the representation of substance by symbols and it DENOTES the number of atoms of each element present in the compound. To WRITE a formula one must know the symbols and valencies of the elements.The valency of Hg=2 and of Cl=1 so the formula is HgCl 2
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