Химия 9 класс уравнения

CuO + 2HCl = CuCl2 + H2O
CuO + 2H+ + 2Cl- = Cu2+ + 2Cl- + H2O
CuO + 2H+ = Cu2+ + H2O
HCl + NaOH = NaCl + H2O
H+ + Cl- + Na+ + OH- = Na+ + Cl- + H2O
H+ + OH- = H2O
AgNO3 + HCl = HNO3 + AgCl↓
Ag+ + NO3- + H+ + Cl- = H+ + NO3- + AgCl↓
Ag+ + Cl- = AgCl↓