Does anyone know information about chemistry?

Ok, well, I have some horrible science homework that's due tomorrow and im completley lost. does anyone no three ways the reaction of acid with either a metal or a carbonate is similar? Also, which acid forms salt when it neutralizes sodium hydroxide?
realy quick answers would be much appreciated =]]]

if you have a txt book look it up in there if not email me @ Fun mail me and I'll be happy to help...