Well there are several textbooks:
StudyOn Chemistry 2, (The new version of Chemical Connections 2)
Nelson Chemistry 3 & 4,
Chemistry Dimensions 2, and of course
Heinemann Chemistry 2
as to chocolic's question, it really depends on how your school does things and your chem teacher...
if your chem teacher only uses heinemann then maybe you should get another (or a study guide as above)...to make sure you have all bases covered BUT HOWEVER keep in mind that:
Heinemann is written by the same people (chemistry education association) who write the exams, so why would they go look at other people's textbooks... some stuff is slightly different in other textbooks...especially organic chemistry where some textbooks just split the 'organic pathways' chapter in heinemann and skip parts ...errghh
the only good points would be the diagrams and illustrations (StudyOn Chemistry has good organic chemistry diagrams, but Chemistry Dimensions has good chemical analysis diagrams and Nelson for me is way too confusing

)
explanations might be clearer but i find that harassing the teacher until i get it is better. lol