Worksheet: Compound Names and Formulas

In this worksheet, we will practice interconverting compound names and formulas by deducing the stoichiometry and oxidation states of constituent elements.

Q1:

What is the name of the compound with the formula KO2?

  • ADipotassium oxide
  • BDipotassium oxalate
  • CPotassium oxalate
  • DPotassium hydroxide
  • EPotassium oxide

Q2:

What is the formula of magnesium selenide?

  • AMgSe23
  • BMgSe
  • CMgSe2
  • DMgSe3
  • EMgSe2

Q3:

What is the formula of sodium oxide?

  • ANaO23
  • BNaO2
  • CNaO2
  • DNaO
  • ENaO32

Q4:

What is the formula of hydrogen fluoride?

  • AHF3
  • BHF2
  • CHF2
  • DHF
  • EHF23

Q5:

What is the formula of gallium phosphide?

  • AGaP3
  • BGaP3
  • CGaP
  • DGaP2
  • EGaP32

Q6:

What is the formula of aluminum bromide?

  • AAlBr23
  • BAlBr3
  • CAlBr
  • DAlBr2
  • EAlBr2

Q7:

What is the formula of ammonium carbonate?

  • ANHCO43
  • B(NH)CO433
  • C(NH)(CO)4233
  • DNH(CO)432
  • E(NH)CO423

Q8:

What is the formula of chlorine dioxide?

  • AClO
  • BClO2
  • CClO32
  • DClO42
  • EClO3

Q9:

What is the formula of dinitrogen tetroxide?

  • ANO2
  • BNO24
  • CNO23
  • DNO
  • ENO2

Q10:

What is the formula of potassium phosphide?

  • AKP2
  • BKP32
  • CKP3
  • DKP2
  • EKP

Q11:

What is the formula of silver(I) sulfide?

  • AAgS32
  • BAgS2
  • CAgS23
  • DAgS2
  • EAgS

Q12:

What is the formula of aluminum nitride?

  • AAlN3
  • BAlN2
  • CAlN23
  • DAlN
  • EAlN2

Q13:

What is the formula of silicon dioxide?

  • ASiO23
  • BSiO2
  • CSiO42
  • DSiO32
  • ESiO

Q14:

What is the name of the compound with the formula CrO23?

  • AChromium(III) oxide
  • BChromium oxide(II)
  • CChromium oxide(III)
  • DChromium(II) oxide
  • EChromium(IV) oxide

Q15:

What is the name of the compound with the formula FeCl2?

  • AIron(II) chloride
  • BIron(IV) chloride
  • CChlorine ferrate(II)
  • DIron(III) chloride
  • EChlorine ferrate(IV)

Q16:

What is the name of the compound with the formula CrO3?

  • AChromium(VI) oxide
  • BChromium(IV) oxide
  • CChromium(III) oxide
  • DChromium(I) oxide
  • EChromium(II) oxide

Q17:

What is the name of the compound with the formula TiCl4?

  • AChlorine titanate(VI)
  • BTitanium(VI) chloride
  • CTitanium(IV) chloride
  • DChlorine titanate(IV)
  • ETitanium(VIII) chloride

Q18:

What is the name of the compound with the formula CoO?

  • ACobalt(IV) oxide
  • BCobalt(II) oxide
  • CCobalt(I) oxide
  • DCobalt(V) oxide
  • ECobalt(III) oxide

Q19:

What is the name of the compound with the formula MoS2?

  • AMolybdenum(IV) sulfide
  • BMolybdenum(VI) sulfide
  • CMolybdenum(II) sulfate
  • DMolybdenum(II) sulfide
  • EMolybdenum(IV) sulfate

Q20:

What is the formula of potassium phosphate?

  • AKPO24
  • BKPO33
  • CKPO3
  • DKPO34
  • EKPO23

Q21:

What is the formula of copper(I) sulfite?

  • ACuSO4
  • BCu(SO)32
  • CCuSO3
  • DCuSO24
  • ECuSO23

Q22:

What is the formula of copper(II) sulfate?

  • ACuSO4
  • BCu(SO)42
  • CCuS2
  • DCuSO3
  • ECuS

Q23:

What is the formula of calcium chloride?

  • ACaCl4
  • BCaCl3
  • CCaCl
  • DCaCl2
  • ECaCl23

Q24:

What is the formula of titanium(IV) dioxide?

  • ATiO2
  • BTiO2
  • CTiO
  • DTiO32
  • ETiO4

Q25:

What is the formula of ammonium nitrate?

  • ANHNO33
  • B(NH)NO422
  • C(NH)NO423
  • DNHNO43
  • ENHNO42

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