Net Ionic Equation

Question

A. Write a net ionic equation for the reaction that occurs when excess hydrobromic acid (aq) and cobalt(II) carbonate (s) are combined.

B. Write a net ionic equation for the reaction that occurs when calcium sulfide and excess hydrochloric acid (aq) are combined.

C.Write a net ionic equation for the reaction that occurs when barium sulfite (s) and excess hydrobromic acid (aq) are combined. Note: Sulfites follow the same solubility trends as sulfates.

Answer 1

2HBr(aq) + CoCl₂(s) ==> CoBr₂(aq) + 2HCl(aq)

CoCl₂(s) ==> Co²⁺(aq) + 2Cl^-(aq)

CaS(s) + 2HCl(aq) ==> CaCl₂(aq) + H₂S(aq)

CaS(s) ==> Ca²⁺(aq) + S^2-(aq)

BaSO₃(s) + 2HCl ==> BaCl₂(aq) + H₂SO₃(aq)

BaSO₃(s) ==> Ba²⁺(aq) + SO₃^2-(aq)