Who

1

• Who ate the pizza?

Pizza Box
2
In the pizza box

• In the pizza box are all the ate versions with 4
  oxygens
• Phosphate
• Sulfate
• Arsenate
• Selenate

3- 2-
PO4 SO4
AsO4 SeO4
3
Outside of the pizza box
2- 1- 1-

• Are all of the ate versions with 3 oxygens
• Carbonate
• Nitrate
• Chlorate
• Bromate
• Iodate

CO3 NO3
P S ClO3
As Se BrO3
IO3
4
From this you can figure out the rest of the
oxyanions

• Per___ate has one more oxygen than ATE
• ___ate most common form (MCF)
• ___ite one less oxygen than the ate
• hypo__ite two less oxygens than the ate

5
Then you just have to know the others
C2H3O2- (or CH3COO-) acetate
HCO3- hydrogen carbonate (bicarbonate)
HSO4- hydrogen sulfate (bisulfate)
OH- hydroxide
CN- cyanide
HCOO- formate
NH4 (note positive charge) ammonium