1)
Mg(OH)₂ + 2 HNO₃ -> Mg(NO₃)₂ + 2 H₂O
Mg²⁺ + 2 OH⁻ + 2 H⁺ + 2 NO₃⁻ -> Mg²⁺ + 2 NO₃⁻ + 2 H₂O
2 OH⁻ + 2 H⁺ -> 2 H₂O
2)
2 Zn + O₂ -> 2 ZnO
ZnO + 2 HNO₃ -> Zn(NO₃)₂ + H₂O
3)
elektroliza chlorku litu
K: 2 Li⁺ + 2e⁻ -> 2 LI
A: 2 Cl⁻ - 2 e⁻ -> Cl₂
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1)
Mg(OH)₂ + 2 HNO₃ -> Mg(NO₃)₂ + 2 H₂O
Mg²⁺ + 2 OH⁻ + 2 H⁺ + 2 NO₃⁻ -> Mg²⁺ + 2 NO₃⁻ + 2 H₂O
2 OH⁻ + 2 H⁺ -> 2 H₂O
2)
2 Zn + O₂ -> 2 ZnO
ZnO + 2 HNO₃ -> Zn(NO₃)₂ + H₂O
3)
elektroliza chlorku litu
K: 2 Li⁺ + 2e⁻ -> 2 LI
A: 2 Cl⁻ - 2 e⁻ -> Cl₂