Написать уравнения реакций. 1.na2co3 + hcl = nacl + h2o + co2 2.cuso4 + naoh = cu (oh)2↓ +na2so4 3.naoh + hci = naci + h2o

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