2NiCl2 + 2Na2CO3 + H2O → Ni2(OH)2CO3 + 4NaCl + CO2
Nickel(II) chloride react with sodium carbonate and water to produce nickel(II) dihydroxide-carbonate, sodium chloride and carbon dioxide. Nickel(II) chloride and carbonate sodium - diluted solutions. The reaction proceeds at room temperature.