[mr cool]

does anybody know where i could learn like the gas laws unit again? becuase right now we are working on breaking down reactions into all of the things that happen during a reaction and adding catalysts to the slowest step and what-not and i think i need to get a better grasp on this because it is pretty confusing.  I also need to re-learn lewis structures.  Any websites would be helpful, thanks.  Im just terrible at lewis structures, a book would be beneficial but we received no book for this class

a user friendly site would be nice too.  Something that pertains more to students more than chemists.