Unit 2 – Part 1: Naming and Formula Writing in Chemistry

NH₄⁺

ammonium

NO₂⁻

nitrite

NO₃⁻

nitrate

OH⁻

hydroxide

CN-1

cyanide

MnO₄⁻

permanganate

HCO₃⁻

hydrogen carbonate (Bicarbonate)

CIO-1

hypochlorite

ClO₂⁻

chlorate

ClO₄⁻

Perchlorate

C₂H₃O₂⁻ (or CH₃COO⁻)

Acetate

CO₃²⁻

Carbonate

SO₃²⁻

Sulfite

SO₄²⁻

Sulfate

O₂²⁻

Peroxide

CrO₄²⁻

Chromate

Cr₂O₇²⁻

Dichromate

PO₄³⁻

Phosphate

PO₃³⁻

Phosphite

SCN⁻

Thiocyanate

Predicted Ion charge Potassium (K)

(+1)

Predicted Ion charge Barium (Ba)

(+2)

Arsenic (as the arsenide ion)

(-3)

Bromine (as the bromide ion)

(-1)

LiF

lithium fluoride

BaF₂

barium fluoride

AlF₃

aluminum fluoride

Li₂S

lithium sulfide

BaS

barium sulfide

Al₂S₃

aluminum sulfide

Li₃P

lithium phosphide

Ba₃P₂

barium phosphide

AlP

aluminum phosphide

F⁻ (fluoride): Li⁺

LiF — lithium fluoride

F⁻ (fluoride): Ba²⁺

BaF₂ — barium fluoride

F⁻ (fluoride): Al³⁺

AlF₃ — aluminum fluoride

S²⁻ (sulfide): Li

Li₂S — lithium sulfide

S²⁻ (sulfide) Ba²⁺

BaS — barium sulfide

S²⁻ (sulfide) Al³⁺

Al₂S₃ — aluminum sulfide

P³⁻ (phosphide) Li⁺

Li₃P — lithium phosphide

P³⁻ (phosphide) Al³⁺

AlP — aluminum phosphide

P³⁻ (phosphide)Ba²⁺

Ba₃P₂ — barium phosphide