1a) What is the net ionic equation of the reaction of ZnCl2 with NaOH ? 1b) What is the net ionic equation of the reaction of MgSO4 with Sr(NO3)2 ?

Question

Express you answer as a chemical equation including phases.

Answer 1

Balanced equation; ZnCl2 (aq₎ + 2NaOH (aq) ===> Zn(OH)₂ (s) + 2NaCl (aq)

ionic equation: Zn²⁺ (aq) + 2Cl^1- (aq) + 2Na¹⁺ (aq)+ 2(OH)^1- (aq) ===> Zn(OH)₂ (s) + 2Cl^1- (aq)+ 2Na¹⁺ (aq)

net ionic: Zn²⁺ + 2OH^1- ===> Zn(OH)₂ (s)

The second part is done similarly noting that SrSO₄ is the only solid formed.