Learn about cations and anions. In chemistry we….. Learn about cations and anions.

+ NH 4 Cation, Ammonium

Cr +++ Cation, Chromium (III)

Ca ++ Cation, Calcium

Anion, Hydroxide OH -

++ Mg Cation, Magnesium

Cation, Mercury (II) ++ Hg

- - - PO 4 Anion, Phosphate

Anion, CrO4--- Chromate

Cation, Barium Ba ++

Learn about cations and anions. Cr +++ In chemistry we….. + ++ Mg NH 4 Ca ++ OH - - - - PO ++ 4 Hg Chromate Ba ++ Learn about cations and anions.

We also learn about the elements and make element cards. hydrogen 1.0079 s1 s

Ptotall-PH2O=Pdryn gas We use math to help us understand the chemistry that we can not see. Ptotall-PH2O=Pdryn gas V2=V1 x P1 1 P2 V2 = V1 x P1 x T2 1 P2 T1

we do labs