Dear CCMM;
Solve your problem step by step!
As a first step try to complete the left side of the reaction:
What (the formulas please) did the student add to the solution?
If you don’t know the formulas, a fast search in the Internet will be helpfully!
(Think about, that all are aqueous solutions!)
I hope this will be helpful for starting!
Good Luck!
ARGOS++