1. The problem statement, all variables and given/known data What is produced when NH3 is mixed with CuSO4(aq)? What is produced when H2SO4(aq) is mixed with Cu(NH3)4+2? 2. Relevant equations None 3. The attempt at a solution For the first one, I'm thinking I should treat ammonia as a Group 1 metal and do a single replacement, but I'm not sure how this would work out. For the second one, I have no clue how to start. Would the hydrogen pair up with the copper? Thanks in advance for the help.