Ответ:
2HCl + Fe = FeCl2 + H2↑
2H+ + 2Cl- + Fe = Fe2+ + 2Cl- + H2↑
2H+ + Fe = Fe2+ + H2↑
2HCl + CaO = CaCl2 + H2O
2H+ + 2Cl- + CaO = Ca2+ + 2Cl- + H2O
2H+ + CaO = Ca2+ + H2O
3HCl + Al(OH)3 = AlCl3 + 3H2O
3H+ + 3Cl- + Al(OH)3 = Al3+ + 3Cl- + 3H2O
3H2+ + Al(OH)3 = Al3+ + 3H2O
HCl + AgNO3 = AgCl↓ + HNO3
H+ + Cl- + Ag+ + NO3- = AgCl↓ + H+ + NO3-
Ag+ + Cl- = AgCl↓
Объяснение: