How do you indicate a gas in a balanced chemical equation?

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Solution

Balance chemical equation -
The same number of atoms of different elements on the reactants and products side is called the balanced chemical equation.
This is done by the hit and trial method using coefficient and multiples till the number is obtained.
The triangle on the arrow $\overset{∆}{\to}$ shows the heating condition.
Upward arrow (⤒) indicate the gaseous product in the chemical equation.
Example - ${CaCO}_{3} \overset{∆}{(s) \to} CaO (s) + {CO}_{2} (g) ↑$

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