Na₂S + 2HCI -> 2NaCl + H₂S
2+ + 2+2 -> 2+2 + H₂S
2 + -> H₂S
K₂O + H₂O -> 2KOH
K₂O + H₂O -> 2+2
Mg(OH)₂ + 2HNO₃ -> Mg(NO₃)₂ + 2H₂O
Mg(OH)₂ + 2+2 -> +2 + 2H₂O
Mg(OH)₂ + 2 -> + 2H₂O
Na₂S + 2HCI -> 2NaCl + H₂S
2+ + 2+2 -> 2+2 + H₂S
2 + -> H₂S
K₂O + H₂O -> 2KOH
K₂O + H₂O -> 2+2
Mg(OH)₂ + 2HNO₃ -> Mg(NO₃)₂ + 2H₂O
Mg(OH)₂ + 2+2 -> +2 + 2H₂O
Mg(OH)₂ + 2 -> + 2H₂O