Question

why do we use physical States while writing chemical equation? ​

Answer 1

Answer:

This is done to make it more informative and to emphasise that those reactions occur in that manner only under those conditions. Hence, physical states of reactants and products are mentioned while writing a chemical equation.

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Answer 2

Answer:

When reading or writing a chemical equations, you will notice the indication of physical states.These are important for determining the form of the compound involved in the reaction.