Webassign 5 -- Nomenclature

1. Provide the name or chemical formula, as appropriate, for each of the following acids. (Type your answer using the format CO2 for CO₂. Include the word 'acid' in your answer where appropriate.)

• a) hydrobromic acid      (Answer: HBr)
• b) sulfurous acid     (Answer: H2SO3)
• c) nitrous acid     (Answer: HNO2)
• d) HClO₃     (Answer: Chloric Acid)
• e) HC₂H₃O₂    (Answer: Acetic Acid)
• f) H₂CO₃    (Answer: Carbonic Acid)

2. Provide the name or chemical formula, as appropriate, for each of the following binary molecular substances. (Type your answer using the format CO2 for CO₂.)

• a) SiBr₄     (Answer: Silicon Tetrabromide)
• b) CCl₄    (Answer: Carbon Tetrachloride)
• c) S₂Cl₂     (Answer: Disulfur Dichloride)
• d) dinitrogen pentoxide    (Answer: N2O5)
• e) tetraphosphorus decasulfide     (Answer: P4S10)
• f) hydrogen iodide     (Answer: HI)

3. Supply either a formula to match the name or a name to match the formula for each of the following binary molecular compounds. (Type your answer using the format CO2 for CO₂.)

• a) silicon tetrachloride     (Answer: SiCl4)
• b) diboron trichloride     (Answer: B2Cl3)
• c) dichlorine trioxide     (Answer: Cl2O3)
• d) sulfur hexafluoride     (Answer: SF6)
• e) P₂O₃     (Answer: Diphosphorus Trioxide)
• f) SeBr₆     (Answer: Selenium Hexabromide)
• g) I₂O₅     (Answer: Diiodine Pentoxide)
• h) PCl₅     (Answer: Phosphorus Pentachloride)

4. Name the following ionic compounds.

• a) Cr₂O₃     (Answer: Chromium (III) Oxide)
• b) Ca(OH)₂    (Answer: Calcium Hydroxide)
• c) CaC₂O₄·H₂O     (Answer: Calcium Oxalate Monohydrate)
• d) Cr(NO₃)₃·9 H₂O     (Answer: Chromium (III) Nitrate Nonahydrate)
• e) Na₂S₂O₃·5 H₂O     (Answer: Sodium Thiosulfate Pentahydrate)
• f) BaSO₃     (Answer: Barium Sulfite)
• g) FeCl₂     (Answer: Iron (II) Chloride)
• h) Cr₂(SO₄)₃     (Answer: Chromium (III) Sulfate)
• i) CuI     (Answer: Copper (I) Iodide)
• j) FeCl₃     (Answer: Iron (III) Chloride)
• k) Cu(OH)₂     (Answer: Copper (II) Hydroxide)
• l) Li₂S     (Answer: Lithium Sulfide)
• m) Al₂O₃    (Answer: Aluminum Oxide)
• n) NaHSO₃     (Answer: Sodium Hydrogen Sulfite)
• o) MgBr₂    (Answer: Magnesium Bromide)

5. Give formulas for the following ionic compounds. (Type your answer using the format CO2 for CO₂ and Al3(CO3)2 for Al₃(CO₃)₂. Use the lowest possible coefficients, as needed.)

• a) titanium(IV) oxide (a white pigment)    (Answer: TiO2)
• b) aluminum bromide hexahydrate     (Answer: AlBr3 · 6 H2O)
• c) sodium bromate     (Answer: NaBrO3)
• d) copper(I) sulfide    (Answer: Cu2S)
• e) copper(II) sulfate pentahydrate (an algicide)     (Answer: CuSO4 · 5 H2O)
• f) copper(II) nitrate trihydrate     (Answer: Cu(NO3)2 · 3 H2O)

6. Write a formula for the ionic compound that forms from each of the following pairs of elements. (Type your answer using the format CO2 for CO₂.)

• a) strontium and iodine     (Answer: SrI2)
• b) aluminum and oxygen    (Answer: Al2O3)
• c) zinc and chlorine     (Answer: ZnCl2)
• d) calcium and sulfur     (Answer: CaS)

7. Write a formula for the compound that forms from lithium and the following polyatomic ion. (Type your answer using the format CO2 for CO₂ and Al(OH)3 for Al(OH)₃.)

• a) hydroxide     (Answer: LiOH)
• b) carbonate     (Answer: Li2CO3)
• c) phosphate     (Answer: Li3PO4)
• d) hydrogen phosphate     (Answer: Li2HPO4)

8. Write a formula for each of the following acids. (Type your answer using the format CO2 for CO₂.)

• a) hydroiodic acid     (Answer: HI)
• b) perchloric acid     (Answer: HClO4)
• c) chlorous acid     (Answer: HClO2)