Common Cations and Anions

This set of flashcards contains common cations and anions along with their formulas, assisting in the review of essential chemical species.

Ammonium

NH4+

Hydrogen (proton)

H+

Hydronium

H3O+

Magnesium

Mg2+

Potassium

K+

Silver (I)

Ag+

Zinc (II)

Zn2+

(these down are anions)

Acetate

CH3CO2– or

OAc– or

C2H3O2–

Bromide

Br–

Carbonate

CO3²–

Perchlorate

ClO4–

Chlorate

ClO3–

Chlorite

ClO2–

Hypochlorite

ClO–

Chromate

CrO4²–

Cyanide

CN–

Dichromate

Cr2O7²–

Bicarbonate or hydrogen carbonate

HCO3^1–

Bisulfate or hydrogen sulfate

HSO4–

Hydroxide

OH–

Iodide

I–

Nitrate

NO3–

Nitrite

NO2–

Phosphate

PO4³–

Oxalate

C2O4²–

Oxide

O²–

Permanganate

MnO4–

Sulfate

SO4²–

Sulfite

SO3²–

Sulfide

S²–

what’s an extensive vs. intensive property?

extensive depends on size of the sample (weight, volume, etc.)

intensive do not depend on size (color, melting point, etc.)