Final answer:
Subscript symbols (g), (l), and (aq) indicate the physical states of substances as gas, liquid, and aqueous solution respectively in chemical reactions.
Step-by-step explanation:
In chemistry, it is crucial to identify the physical states of substances involved in reactions. Subscript symbols are used to denote these states:
- (g) refers to a gaseous state.
- (l) represents a substance in the liquid state.
- (aq) stands for an aqueous solution, which means the substance is dissolved in water.
Therefore, matching each subscript symbol to its correct meaning gives us:
- (g) - gas (a)
- (l) - liquid (c)
- (aq) - aqueous solution (b)