What are strong and weak acids? In the following list of acids,separate strong acids from weak acids: Hydrochloric acid,citric acid,acetic acid,nitric acid,formic acid,sulphuric acid.

(N/A) Strong acids are those that ionize completely in aqueous solutions to provide a high concentration of hydronium ions $(H_3O^+)$.
Weak acids are those that ionize only partially in aqueous solutions,providing a much lower concentration of $H_3O^+$ ions compared to strong acids of the same molar concentration.
Strong acids: Hydrochloric acid $(HCl)$,sulphuric acid $(H_2SO_4)$,nitric acid $(HNO_3)$.
Weak acids: Citric acid,acetic acid $(CH_3COOH)$,formic acid $(HCOOH)$.