а) Fe³⁺ + ЗОH⁻= Fe(OH)₃↓
FeCI₃ + 3NaOH = Fe(OH)₃↓ + 3NaCI
Fe³⁺ + 3CI⁻ + 3Na⁺ + 3OH⁻ = Fe(OH)₃↓ + 3Na⁺ + 3CI⁻
б) Ва²⁺ + СО₃= ВаСO₃↓
ВаCI₂ + Na₂СО₃)=ВаСО₃↓ + 2NaCI
Ва²⁺ + 2CI⁻ + 2Na⁺ + СО₃²⁻ = ВаСО₃↓ + 2Na⁺ + 2CI⁻
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Verified answer
а) Fe³⁺ + ЗОH⁻= Fe(OH)₃↓
FeCI₃ + 3NaOH = Fe(OH)₃↓ + 3NaCI
Fe³⁺ + 3CI⁻ + 3Na⁺ + 3OH⁻ = Fe(OH)₃↓ + 3Na⁺ + 3CI⁻
б) Ва²⁺ + СО₃= ВаСO₃↓
ВаCI₂ + Na₂СО₃)=ВаСО₃↓ + 2NaCI
Ва²⁺ + 2CI⁻ + 2Na⁺ + СО₃²⁻ = ВаСО₃↓ + 2Na⁺ + 2CI⁻