Zn(OH)₂↓ + 2HCl = ZnCl₂ + 2H₂O
Zn(OH)₂↓ + 2H⁺ + 2Cl⁻ = Zn²⁺ + 2Cl⁻ + 2H₂O
Zn(OH)₂↓ + 2H⁺ = Zn²⁺ + 2H₂O
ZnCl₂ + 2AgNO₃ = 2AgCl↓ + Zn(NO₃)₂
Zn²⁺ + 2Cl⁻ + 2Ag⁺ + 2NO₃⁻ = 2AgCl↓ + Zn²⁺ + 2NO₃-
2Cl⁻ + 2Ag⁺ += 2AgCl↓
Zn(NO₃)₂ + K₂S = ZnS↓ + 2KNO₃
Zn²⁺ + 2NO₃⁻ + 2K⁺ + S²⁻ = ZnS↓ + 2K⁺ + 2NO₃⁻
Zn²⁺ S²⁻ = ZnS↓