This document provides the net ionic equations for three chemical reactions involving mixing solutions: 1) Barium chloride and copper sulfate produce a barium sulfate precipitate and copper chloride solution. 2) Sodium nitrate and zinc chloride do not react. 3) Potassium hydroxide and nickel chloride produce potassium chloride and nickel hydroxide with no precipitate.

1. 7) How many ml of 0. 8) Determine if a precipitate occurs upon mixing the following solutions.
If a precipitate does occur, give the correct net ionic equation: a) BaCI, and CuSO b) NaNO, and
ZnCl, c) KOH and NiCl,
Solution
Solution:
The net ionic equation for the precipitates as given below,
a) BaCl 2 and CuSO 4
BaCl 2 + CuSO 4 --> BaSO 4 + CuCl 2
Precipitate = BaCl 2 white precipitate
CuCl 2 = blue colour solution
b) NaNO3 and ZnCl4
No reaction forms
c) KOH and NiCl 2
2KOH + NiCl 2 --> KCl 2 + Ni(OH) 2
No precipitate forms