1.	Part 2: Single-Displacement Reactions: For each of the four single-displacement reactions, write a balanced equation. Assume that there will be a reaction even if you didn't see one in the lab. General equation for single-displacement reactions:
 A + BX → AX + B 
Ion charges: (Zn2+, Cu2+, SO42-, Al3+, Ag1+, NO31-) Answer: •	zinc [Zn] + copper sulfate [Cu(SO4)] (2 points) ◦	
Balanced equation:  … + … → …. + …. •	aluminum [Al] + copper sulfate  [Cu(SO4)] (2 points) ◦	
Balanced equation:   … + … → …. + …. •	zinc [Zn] + silver nitrate [Ag(NO3)] (2 points) 
◦	Balanced equation:   … + … → …. + …. •	copper [Cu] + silver nitrate [Ag(NO3)] (2 points) ◦	Balanced equation:   … + … → …. + ….