Chemistry test

Ammonium

NH4+ ion with a charge of +1

Hydronium

H3O+ ion with a charge of +1

Hydroxide

OH- ion with a charge of -1

Cyanide

CN- ion with a charge of -1

Thiocyanate

SCN- ion with a charge of -1

Nitrite

NO2- ion with a charge of -1

Nitrate

NO3- ion with a charge of -1

Hypochlorite

ClO- ion with a charge of -1

Chlorite

ClO2- ion with a charge of -1

Chlorate

ClO3- ion with a charge of -1

Perchlorate

ClO4- ion with a charge of -1

Bromate

BrO3- ion with a charge of -1

Iodate

IO3- ion with a charge of -1

Permanganate

MnO4- ion with a charge of -1

Bicarbonate

HCO3- ion with a charge of -1

Acetate

C2H3O2- ion with a charge of -1

Sulfite

SO3 2- ion with a charge of -2

Sulfate

SO4 2- ion with a charge of -2

Thiosulfate

S2O3 2- ion with a charge of -2

Oxalate

C2O4 2- ion with a charge of -2

Carbonate

CO3 2- ion with a charge of -2

Chromate

CrO4 2- ion with a charge of -2

Dichromate

Cr2O7 2- ion with a charge of -2

Phosphite

PO3 3- ion with a charge of -3

Phosphate

PO4 3- ion with a charge of -3

Multiplication and Division SIg fig rules

result should have the same number of significant figures as the term with the least number of significant figures.

Addition and Subtraction Sig fig rules

The result should have the same number of decimal places as the term with the least number of decimal places.