[jg]

Some answer choices for reactions will have (+/-), I understand this referes to enantiomers formed, however I don't know when you should chose the an answer with (+/-) over the same answer choice without it. Anyone know a simple way of explaining this?

[Woofuls]

See here: http://en.wikipedia.org/wiki/Levorotation_and_dextrorotation

You cannot determine levorotation and dextrorotation without experimental data. If the specific rotation is positive it is +, while if the specific rotation is negative it is -.