Naming Inorganic Compounds: Answer Sheet

1. Complete the following chart of corresponding ion names and formulas.

Cation Name

Formula

 

Anion Name

Formula

(1) potassium ion

K+

 

(11) nitrate ion

NO3-

(2) iron(III) ion

(or ferric ion)

Fe3+

 

(12) dihydrogen phosphate ion

H2PO4-

(3) ammonium ion

NH4+

 

(13) hydrogen carbonate (or bicarbonate) ion

HCO3-

(4) barium ion

Ba2+

 

(14) permanganate ion

MnO4-

(5) silver ion

Ag+

 

(15) perchlorate ion

ClO4-

(6) copper(II) ion

(or cupric ion)

Cu2+

 

(16) sulfide ion

S2-

(7) zinc ion

Zn2+

 

(17) acetate ion

CH3CO2-

(or C2H3O2-)

(8) cobalt(II) ion

Co2+

 

(18) dichromate ion

Cr2O72-

(9) hydrogen ion

H+

 

(19) carbonate ion

CO32-

(10) chromium(III) ion

Cr3+

 

(20) sulfite ion

SO32-

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2. Complete the following chart of corresponding compound names and formulas. Circle the names of all non-ionic (i.e., molecular) compounds. (NOTE: In these answers I have used shading (instead of circles) to indicate the molecular compounds (diphosphorus pentoxide, etc.).)

Compound Name

Formula

 

Compound Name

Formula

(1) silver nitrate

AgNO3

 

(11) sodium hydrogen phosphate

Na2HPO4

(2) nickel(II) acetate

Ni(CH3CO2)2

 

(12) sulfur trioxide

SO3

(3) ammonium sulfate

(NH4)2SO4

 

(13) potassium permanganate

KMnO4

(4) diphosphorus pentoxide

(or diphosphorus pentaoxide)

P2O5

 

(14) aluminum sulfide

Al2S3

(5) sodium oxide

Na2O

 

(15) cobalt(III) sulfate

Co2(SO4)3

(6) ammonium nitrate

NH4NO3

 

(16) silver chromate

Ag2CrO4

(7) nitrogen trichloride

NCl3

 

(17) strontium fluoride

SrF2

(8) sodium hydrogen carbonate (or sodium bicarbonate)

NaHCO3

 

(18) sulfur hexafluoride

 

SF6

(9) iron(II) acetate

Fe(CH3CO2)2

or Fe(C2H3O2)2

 

(19) ammonia

 

NH3

(10) carbon tetrachloride

CCl4

 

(20) lithium chlorate

LiClO3


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