[Aznhmonglor]

What is the enthalpy change of each of the following reactions?
Reaction H (kJ/mol)

Ag2O(s) + H2(g)  -> 2Ag(s) + H2O(l) 

Fe2O3(s) + 3CO(g)  -> 2Fe(s) + 3CO2(g) 

2Ag1+(aq) + Pb(s)  -> 2Ag(s) + Pb2+(aq)

4NH3(g) + 5O2(g)  -> 4NO(g) + 6H2O(g)

CH3COOH(l) + 2O2(g)  -> 2CO2(g) + 2H2O(l) 

Do I have to use the bond energies table to figure these out? How would the first one look like?

[UG]

Do I have to use the bond energies table to figure these out? How would the first one look like?

Yes, if they have given you one 
First one would look like the
sum of all the bonds broken - sum of all the bonds formed

You just add up all the bond enthalpies from both sides and then subtract the 'formed' value from the 'broken' value