It is over redox reactions. I have some homework due tomorrow in my chem class and he makes us go to the board like 4 at a time and right out the problem and process and explain everything so I really need to know it. The problem is he hasn't gotten to the redox reactions as they are the last thing in the chapter.
Anyway, question is:
Determine whether each reaction is a redox reaction. For each redox reaction, identify the oxidizing agent and the reducing agent.
a) Al(s) + 3Ag^+(aq) --> Al^3+(aq) + 3 Ag(s)
b) SO2(g) + H20(l) --> H2SO4(aq)
c) Ba(s) + Cl2(g) --> BaCl2(s)
d) Mg(s) + Br2(l) --> MgBr2(s)
If someone could actually explain this that would be great..