[bbrrookie]

I just have a quick question:

      How do you know in which direction the reaction is proceeding when you are doing an equation that involves the ICE table?  For example:  On the C part of ICE how can you tell whether to put -x on the reactant side or on the product side?

[Dan]

Reactants are consumed and products are formed.

Given that, do you think the change in concentration of the reactants is positive or negative (increases or decreases)?

[JustinCh3m]

Dan is correct.  Usually with G-chem undergraduate Equilibrium reactions, reactants are usually being converted to products.  That being said, you should now be able to figure out where you put the -x and the +x.  Watch your coefficients too!  Maybe it will be a -2x, +3x, etc.

[bbrrookie]

oh ok.  Thanks guys.  I read your responses just before my test today and it helped me out a lot.