Question

Написать уравнения реакций.
1.Na2CO3 + HCL = NaCL + H2O + CO2
2.CuSO4 + NaOH = Cu (OH)2↓ +Na2SO4
3.NaOH + HCI = NaCI + H2O

Answer 1

1) Na2CO3 + 2HCl = 2NaCl + H2O + CO2↑
2Na⁺+CO₃²⁻+2H⁺+2Cl⁻=2Na⁺+2Cl⁻+H₂O+CO₂↑
2H⁺+CO₃²⁻=H₂O+CO₂↑
2) CuSO4 + 2NaOH = Cu(OH)2↓ + Na2SO4
Cu²⁺+SO₄²⁻+2Na⁺+2OH⁻=Cu(OH)₂↓+2Na⁺+SO₄²⁻
Cu²⁺+2OH⁻=Cu(OH)₂↓
3) NaOH+HCl = NaCl+H₂O
Na⁺+OH⁻+H⁺+Cl⁻=Na⁺+Cl⁻+H₂O
H⁺+OH⁻ = H₂O