Odpowiedzi

2009-11-04T13:29:40+01:00
3KOH+CrBr₃ → Cr(OH)₃ + 3HBr
3K⁺ + 3OH⁻ + Cr³⁺ + 3Br⁻ → Cr(OH)₃ + 3H⁺ + 3Br⁻
Cr³⁺ +3OH⁻ → Cr(OH)₃

Ba(OH)₂+2HNO₃ → Ba(NO₃)₂ + 2H₂O
Ba²⁺ + 2OH⁻ +2H⁺ + 2NO₃⁻ → Ba²⁺ + 2NO₃⁻ + 2H₂O
2OH⁻ + 2H⁺ → 2H₂O