CuS + 2 HCl → CuCl 2 + H 2SFePO 4 + 4 HCl → FeCl 2 + H 3PO 4H 2O + CO 2 → H 2CO 3Al(OH)3 + 3 HCl → AlCl 3 + 3 H 2O
CuS + 2 HCl → CuCl 2 + H 2S
FePO 4 + 4 HCl → FeCl 2 + H 3PO 4
H 2O + CO 2 → H 2CO 3
Al(OH)3 + 3 HCl → AlCl 3 + 3 H 2O