Answer: the attachment of (l) immediately after the chemical symbol of a substance implies that the substance is in liquid state.
Step-by-step explanation:
For example, in a neutralization reaction:
NaOH(aq) + HCl(aq) ---------------> NaCl(aq) + H2O (l)
The (l) shows that water is in the liquid state. Metals and ionic solids can also be heated and turned into liquid state. This often occurs during electrolysis of molten salts to obtain a metal.