Answer :
Explanation:
The following representations are the symbols that are being used in chemical equations.
- All representations of elements in the periodic table
- (s) solid state
- (g) gaseous state
- (l) liquid state
- (aq) aqueus solution
- ∆ indicates the application of heat
- →← Forward and Backward direction
- ⇄ Reversible reaction
Anything outside these symbols are not being used in chemical equations.