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BaCO₃
BaCl₂ + Na₂CO₃ → ↓BaCO₃ + 2NaCl
Ba²⁺ + 2Cl⁻ + 2Na⁺ + CO₃²⁻ → ↓BaCO₃ + 2Na⁺ + 2Cl⁻
Ba²⁺ + CO₃²⁻ → ↓BaCO₃
BaBr₂ + K₂CO₃ → ↓BaCO₃ + 2BaBr
Ba²⁺ + 2Br⁻ + 2K⁺ + CO₃²⁻ → ↓BaCO₃ + 2K⁺ + 2Br⁻
Ba²⁺ + CO₃²⁻ → ↓BaCO₃
Zad. 2
CaCl₂ + Na₂SO₄ → ↓CaSO₄ + 2NaCl
CaBr₂ + K₂SO₄ → ↓CaSO₄ + 2KBr