State the advantages of writing a chemical equation using formulae and symbols.

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Solution

The advantages of writing a chemical equation using formulae and symbols are:
(i) The representation of a chemical reaction becomes easy. It saves time and space in writing.
(ii) In order to prepare a definite amount of the product, the amount of the reactant to be used can be calculated accurately.
(iii) A single arrow between the reactants and products tells us that the reaction goes to completion while a double arrow shows that it is a reversible reaction

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