Nomenclature

Level 1 (Binary Inonic)

100

KBr

Potassium Bromide

200

Al₂O₃

Aluminum Oxide

300

calcium chloride

CaCl₂

400

Ag⁺ and S^2-

Ag₂S

Silver sulfide

500

Fe₂O₃

iron (III) oxide

Level 2 (Binary Molecular/Organic)

100

CO₂

carbon dioxide

200

hexane

6-carbon chain

H₃C-CH₂-CH₂-CH₂-CH₂-CH₃

300

dinitrogen trioxide

N₂O₃

400

Cl₂O₇

dichlorine heptoxide

500

9-carbon hydrocarbon chain

nonane

Level 3 (Polyatomics)

100

NH₄Cl

ammonium chloride

200

Mg(OH)₂

Magnesium hydroxide

300

Potassium nitrate

KNO₃

400

Iron (II) sulfate

FeSO₄

500

Cu₃(PO₄)₂

Copper (II) Phosphate

Level 4 (Oxoacids etc.)

100

nitric acids

HNO₃

200

KMnO₄

potassium permanganate

300

sulfuric acid

H₂SO₄

400

CuCr₂O₇

Copper(II) dichromate

500

NaClO

sodium hypochlorite

(bleach)

Level 5 (challenge!)

100

HI

hydroiodic acid

200

cobalt and chloride

CoCl₂

Cobalt (II) chloride

300

NH₄NO₂

Ammonium nitrite

400

nickel (II) phosphate

Ni₃(PO₄)₂

500

Al(ClO₄)₃

aluminum perchlorate