Question

A chem 1515 student was given a solution of the cations X3 , Y2 , and Z in the form of nitrates. Through a series of tests, she obtained the following information:

Reagent X3 Y2 Z
Na2SO4 No Reaction Forms white ppt. Brown ppt. forms
NH4OH No Reaction No Reaction ppt. Dissolves
HCl No Reaction No Reaction White ppt. forms
Na3PO4 White ppt. forms No Reaction No Reaction

The reaction between Z (aq) and Na2SO4 forms a brown ppt.

Required:
Write a balanced chemical equation for all of the reactions which result in the formation of a precipitate

Answer 1

`2Z^+ (aq) + SO^(2-) _(4) (aq) = Z_(2) SO_(4)`

Step-by-step explanation:

The reaction between Z(aq) and Na2SO4 forming a brown ppt shows that the product formed from this reaction is a solid. and also it can be seen that Z+ is a monocationic while SO4 is dianionic, hence molecules (2) of Z+ will combine with (1) molecule of SO4

below is the balanced chemical equation for this reaction

`2Z^+ (aq) + SO^(2-) _(4) (aq) = Z_(2) SO_(4)`