state the names and formulas of the common acids, limited to hydrochloric acid, HCl, sulfuric acid, \( H_2SO_4 \), nitric acid, \( HNO_3 \), ethanoic acid, \( CH_3COOH \)

describe and explain the reactions of halide ions with: (a) aqueous silver ions followed by aqueous ammonia (the formation and formula of the \([Ag(NH_3)_2]^+\) complex is not required) (b) concentrated sulfuric acid, to include balanced chemical equations