Complete and balance the molecular equation, including phases, for the reaction of aqueous sodium carbonate, na2co3 and aqueous nickel(ii) chloride, nicl2.

The reaction of an aqueous solution of sodium carbonate and an aqueous solution of nickel (II) chloride would yield to sodium chloride and nickel carbonate. The chemical reaction would be expressed as:

Na2CO3 + NiCl2 = NaCl + NiCO3

To complete the reaction, we need to balance and specify the phases of the substances. The reactants are in an aqueous solution so we write (aq), NaCl is soluble in water so it is in the aqueous phase, we write (aq) but NiCO3 is insoluble in water so it would precipitate out and we write (s). The complete chemical reaction would be expressed as follows:

Na2CO3(aq) + NiCl2(aq) = 2NaCl(aq) + NiCO3(s)

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