Question

Напишите молекулярные полные и сокращенные ионные уравнения:Nahco3+hcl=......Ca3(Po4)2+H2so4=......Caco3+h2o+co2=....Na2co3+cacl2=....Ca(oh)2+H3Po4=....

Answer 1

1) NaHCO₃+HCl = NaCl + CO2↑ + H2O

Na+ + HCO3− +H+ + Cl− = Na+ + Cl− + CO2↑ + H2O

HCO3− + H+ = CO2↑ + H2O

2) Ca₃(PO₄)₂+3H₂SO₄ = 3CaSO4↓ + 2H3PO4

3) CaCO3(тверд.) + H2O + CO2 =  Ca(HCO3)2(разб.)

4) Na2CO3 + CaCl2 =  CaCO3↓ + 2NaCl

Ca2+ + 2Cl− + 2Na+ + CO32− = CaCO3↓ + 2Na+ + 2Cl−

Ca2+ + CO32− = CaCO3↓

5) H3PO4+Ca(OH)2 = CaHPO4↓ + 2H2O

3H+ + PO43− + Ca2+ + 2OH− = CaHPO4↓ + 2H2O

Answer 2

Ca3(PO4)2 + H2SO4 = CaSO4 + H3PO4 + H2

Answer 3

Molecular, Complete Ionic, and Net Ionic Equations:

1. NaHCO3 + HCl: - Molecular Equation: NaHCO3 + HCl → NaCl + H2O + CO2. - Complete Ionic Equation: Na+(aq) + HCO3-(aq) + H+(aq) + Cl-(aq) → Na+(aq) + Cl-(aq) + H2O(l) + CO2(g). - Net Ionic Equation: HCO3-(aq) + H+(aq) → H2O(l) + CO2(g).

2. Ca3(PO4)2 + H2SO4: - Molecular Equation: Ca3(PO4)2 + H2SO4 → CaSO4 + H3PO4. - Complete Ionic Equation: 3Ca2+(aq) + 2PO4^3-(aq) + 2H+(aq) + SO4^2-(aq) → 3Ca^2+(aq) + SO4^2-(aq) + H3PO4(aq). - Net Ionic Equation: 2H+(aq) + PO4^3-(aq) → H3PO4(aq).

3. CaCO3 + H2O + CO2: - Molecular Equation: CaCO3 + H2O + CO2 → Ca(HCO3)2. - Complete Ionic Equation: CaCO3(s) + H2O(l) + CO2(g) → Ca^2+(aq) + 2HCO3-(aq). - Net Ionic Equation: No net ionic equation because all species are in the same phase.

4. Na2CO3 + CaCl2: - Molecular Equation: Na2CO3 + CaCl2 → 2NaCl + CaCO3. - Complete Ionic Equation: 2Na+(aq) + CO3^2-(aq) + Ca^2+(aq) + 2Cl-(aq) → 2Na+(aq) + 2Cl-(aq) + CaCO3(s). - Net Ionic Equation: CO3^2-(aq) + Ca^2+(aq) → CaCO3(s).

5. Ca(OH)2 + H3PO4: - Molecular Equation: Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O. - Complete Ionic Equation: Ca^2+(aq) + 2OH-(aq) + 2H+(aq) + PO4^3-(aq) → Ca3(PO4)2(s) + 2H2O(l). - Net Ionic Equation: 2H+(aq) + 2OH-(aq) → 2H2O(l).

Please note that the equations provided are based on the information available from the search results.