Ответ:
Объяснение:
K₂S + 2HCl = 2KCl + H₂S
2K⁺ + S²⁻ + 2H⁺ + 2Cl⁻ = 2K⁺ +2Cl⁻ + H₂S
S²⁻ + 2H⁺ = H₂S
2)
HNO₃ + NaOH = NaNO₃ + H₂O
H⁺ + NO₃⁻ + Na⁺ + OH⁻ = Na⁺ + NO₃⁻ + H₂O
H⁺ + OH⁻ = H₂O
3)
BaCl₂ + K₂CO₃ = BaCO₃↓ + 2KCl
Ba²⁺ + 2Cl⁻ + 2K⁺ + CO₃²⁻ = BaCO₃↓ + 2K⁺ + 2Cl⁻
Ba²⁺ + CO₃²⁻ = BaCO₃↓
4)
3CaCl₂ + 2K₃PO₄ = Ca₃(PO₄)₂↓ + 6KCI
3Ca²⁺ + 6Cl⁻ + 6K⁺ + 2PO₄³⁻ = Ca₃(PO₄)₂↓ + 6K⁺ + 6CI⁻
3Ca²⁺ + 2PO₄³⁻ = Ca₃(PO₄)₂↓
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Verified answer
Ответ:
Объяснение:
K₂S + 2HCl = 2KCl + H₂S
2K⁺ + S²⁻ + 2H⁺ + 2Cl⁻ = 2K⁺ +2Cl⁻ + H₂S
S²⁻ + 2H⁺ = H₂S
2)
HNO₃ + NaOH = NaNO₃ + H₂O
H⁺ + NO₃⁻ + Na⁺ + OH⁻ = Na⁺ + NO₃⁻ + H₂O
H⁺ + OH⁻ = H₂O
3)
BaCl₂ + K₂CO₃ = BaCO₃↓ + 2KCl
Ba²⁺ + 2Cl⁻ + 2K⁺ + CO₃²⁻ = BaCO₃↓ + 2K⁺ + 2Cl⁻
Ba²⁺ + CO₃²⁻ = BaCO₃↓
4)
3CaCl₂ + 2K₃PO₄ = Ca₃(PO₄)₂↓ + 6KCI
3Ca²⁺ + 6Cl⁻ + 6K⁺ + 2PO₄³⁻ = Ca₃(PO₄)₂↓ + 6K⁺ + 6CI⁻
3Ca²⁺ + 2PO₄³⁻ = Ca₃(PO₄)₂↓