Question

№4 Необходимо реактивов, с использованием опыта, осуществляющих реакции ниже 1) 2Н+ + СО32- = Н2О + СО2 2) Са2+ + СО32- = СаСО3↓ Уравнений реакции в молекулярной, ионной и сокращенной выпишите в полном смысле.

Answer 1

1)Na2CO3+2HCl →2 NaCl + H2O + CO2
2Na+ + CO3 2- + 2H+ + 2Cl- → 2Na+2Cl- + H2O + CO2
2) CaCl2 + Na2CO3 →CaCO3 + 2NaCl 
Ca2+ + 2Cl- + 2Na+ + Co3 2- → CaCO3 + 2Na+ + 2Cl-

Answer 2

Reaction 1: 2H+ + CO32- = H2O + CO2

The reaction equation can be written in molecular, ionic, and net ionic forms.

Molecular Equation: 2H+ + CO32- = H2O + CO2

Ionic Equation: 2H+ + CO32- = 2H2O + CO2

Net Ionic Equation: 2H+ + CO32- = H2O + CO2

Reaction 2: Ca2+ + CO32- = CaCO3↓

The reaction equation can be written in molecular, ionic, and net ionic forms.

Molecular Equation: Ca2+ + CO32- = CaCO3↓

Ionic Equation: Ca2+ + CO32- = CaCO3↓

Net Ionic Equation: Ca2+ + CO32- = CaCO3↓

Please note that the arrow "↓" indicates the formation of a precipitate.