Determine The Oxidation Number Of Oxygen In The Compound K2co3?
Determine the oxidation number of Oxygen in the compound K2CO3
1 comment May 13th, 2009
Archive for May, 2009
What Is The Net Charge Of The Elements Ni, I And Au On The Periodic Table?
I lost my periodic table and the net doesnt even show one wiht the net charges. The protons,neutrons and electrons were very easy to distinguish but the net charges I do not know 
1 comment May 12th, 2009
Can Someone Help Me With My Stoichiometry Problems In Chemistry?
I put all my questions into an image file. Thanks to whoever helps me! I tried all of these questions, but I am getting the wrong answers. Please help mehttp://img171.imageshack.us/img171/1742/…
4 comments May 12th, 2009
What Are The Groups Of The Periodic Table?
I’ve been looking on the internet at the periodic table. Though each one I look at, the name of each group changes. I know there are Halogens, Alkali metals, Alkali earth metals, Noble gases, non-metals… What are the rest?
What is the group called where the first element is Aluminium, the group with Scandium and the group down the bottom with Cerium? What are they actually called?
Thanks heaps,
Liana
3 comments May 12th, 2009