Nomenclature CHEM 10 Review Worksheet This Chem 10 worksheet is provided to help you review Nomenclature. Please note that the additional polyatomic ions that you must memorize for Chem 11 are not included! An answer key is provided at the end of this worksheet. Nomenclature of Ions and Ionic Compounds 1. Complete the table below for the following monatomic metal and nonmetal ions. Atom Name Ion Formula/ Charge Ion Name Barium Phosphide ion Cu +1 Gallium Selenium Hydrogen Potassium Sulfur Zinc I -1 Mg +2 Pb +4 Nickel(III) ion Aluminum ion Fluoride ion 2. Write formulas for the ionic compounds listed below. It is helpful to first identify the cations and anions. Name Cation Anion Chemical Formula Potassium nitride Aluminum sulfide Barium nitrite Chromium(III) bromide Zinc phosphate Iron(II) carbonate Potassium dichromate Niobium(V) oxide Ammonium sulfate Calcium thiocyanate Silver hydroxide Manganese(IV) chlorate Lithium acetate Tin(II) bicarbonate Gallium oxalate Copper(I) oxide
Strontium phosphide Mercury(II) sulfite Potassium peroxide Ammonium bromide Cesium bisulfite Cobalt(III) nitrate Magnesium cyanide Titanium(IV) phosphite Sodium hypochlorite Gold(I) thiosulfate Indium(III) iodide Lithium carbide Bismuth(V) chromate Nickel(II) Permanganate 3. Write the names for the ionic compounds listed below. Formula Name MgH 2 Ba(ClO 2) 2 SnF 2 KNO 3 Li 2CrO 4 (NH 4) 3P TiO 2 RbCN Zn(MnO 4) 2 Al(HSO 4) 3 Na 2S CuSO 4 Sr(HCO 3) 2 FeN GaCl 3 Mn(C 2O 4) 2 CaSe Au 2(SO 3) 3 NaClO 4 Mg(OH) 2
Nomenclature of Acids 1. What element always leads the formula of an acid? 2. The names of acids depend on the type of anion they contain. Complete the following table: Name of Anion ends in ide ate Name of Acid is ous acid 3. Identify and name the anions in the following acids, then name the acids. Acid Formula HBr (aq) Formula Anion in Acid Name Acid Name H 3PO 4 (aq) HClO 2 (aq) HCN (aq) HMnO 4 (aq) H 2SO 3 (aq) 4. From the name of the acid supplied, determine whether the anion it contains end in -ide, -ate or -ite. Then identify the anion and write the correct formula for the acid. Acid Name Sulfuric acid Ends in Anion in Acid Formula Acid Formula Hydrofluoric acid Chromic acid Nitrous acid Hydrophosphoric acid Oxalic acid
Nomenclature of Simple Binary Covalent Compounds 1. When naming or writing the formulas of binary covalent compounds, the rule is that you write the nonmetal with more metallic character first. Which of the following non-metals would you write first? oxygen or nitrogen iodine or chlorine silicon or sulfur 2. Write the names or formulas as required for each of the following covalent compounds. Compound Name or Formula Cl 2O 6 CO H 2S ICl 5 N 2F 2 Br 3O 8 XeCl 4 SO 3 tetraphosphorus decoxide tricarbon disulfide hydrogen iodide sulfur heptafluoride dichlorine monoxide silicon tetrabromide dinitrogen pentoxide 3. Why is it necessary to use prefixes in the names of covalent compounds? 4. In what cases do we not use prefixes in the names of covalent compounds?
Answer Key Part A: Nomenclature of Ions and Ionic Compounds 1. Complete the table below for the following monatomic metal and nonmetal ions. Atom Name Ion Formula/Charge Ion Name barium Ba +2 barium cation phosphorus P -3 phosphide anion copper Cu +1 copper(i) cation iodine I -1 iodide anion gallium Ga +3 gallium cation selenium Se -2 selenide anion nickel Ni +3 nickel(iii) cation hydrogen H -1 hydride anion magnesium Mg +2 magnesium cation aluminum Al +3 aluminum cation lead Pb +4 lead(iv) cation potassium K +1 potassium cation sulfur S -2 sulfide anion fluorine F -1 fluoride anion zinc Zn +2 zinc cation 2. Write formulas for the ionic compounds listed below. Compound Name Compound Formula potassium nitride K 3N aluminum sulfide Al 2S 3 barium nitrite Ba(NO 2) 2 chromium(iii) bromide CrBr 3 zinc phosphate Zn 3(PO 4) 2 iron(ii) carbonate FeCO 3 potassium dichromate K 2Cr 2O 7 niobium(v) oxide Nb 2O 5 ammonium sulfate (NH 4) 2SO 4 calcium thiocyanate Ca(SCN) 2 silver hydroxide AgOH manganese(iv) chlorate Mn(ClO 3) 4 lithium acetate LiC 2H 3O 2 tin(ii) bicarbonate Sn(HCO 3) 2 gallium oxalate Ga 2(C 2O 4) 3 copper(i) oxide Cu 2O
strontium phosphide Sr 3P 2 mercury(ii) sulfite HgSO 3 potassium peroxide K 2O 2 ammonium bromide NH 4Br cesium bisulfite CsHSO 3 cobalt(iii) nitrate Co(NO 3) 3 magnesium cyanide Mg(CN) 2 titanium(iv) phosphite Ti 3(PO 3) 4 sodium hypochlorite NaClO gold(i) thiosulfate Au 2S 2O 3 indium(iii) iodide InI 3 lithium carbide Li 4C bismuth(v) chromate Bi 2(CrO 4) 5 nickel(ii) permanganate Ni(MnO 4) 2 3. Write the names for the ionic compounds listed below. Compound Formula Compound Name MgH 2 magnesium hydride Ba(ClO 2) 2 barium chlorite SnF 2 tin(ii) fluoride KNO 3 potassium nitrate Li 2CrO 4 lithium chromate (NH 4) 3P ammonium phosphide TiO 2 titanium(iv) oxide RbCN rubidium cyanide Zn(MnO 4) 2 zinc permanganate Al(HSO 4) 3 aluminum bisulfate Na 2S sodium sulfide CuSO 4 copper(ii) sulfate Sr(HCO 3) 2 strontium bicarbonate FeN iron(iii) nitride GaCl 3 gallium chloride Mn(C 2O 4) 2 manganese(iv) oxalate CaSe calcium selenide Au 2(SO 3) 3 gold(iii) sulfite NaClO 4 sodium perchlorate Mg(OH) 2 magnesium hydroxide
Part B: Nomenclature of Acids 1. What element always leads the formula of an acid? Hydrogen, which occurs as the H + cation. 2. The names of acids depend on the type of anion they contain. Complete the following table: Name of Anion ends in Name of Acid is ide hydro ic acid ate ic acid ite ous acid 3. Identify and name the anions in the following acids, then name the acids. Acid Formula Anion in Acid Acid Name HBr (aq) Br -1, bromide hydrobromic acid H 3PO 4 (aq) -3 PO 4, phosphate phosphoric acid HClO 2 (aq) -1 ClO 2, chlorite chlorous acid HCN (aq) CN -1, cyanide hydrocyanic acid HMnO 4 (aq) -1 MnO 4, permanganate permanganic acid H 2SO 3 (aq) -2 SO 3, sulfite sulfurous acid 4. From the name of the acid supplied, identify the anion it contains then write the correct formula for the acid. Acid Name Anion in Acid Acid Formula Sulfuric acid -2 sulfate, SO 4 H 2SO 4 (aq) Hydrofluoric acid fluoride, F -1 HF (aq) Chromic acid -2 chromate, CrO 4 H 2CrO 4 (aq) Nitrous acid -1 nitrite, NO 2 HNO 2 (aq) Hydrophosphoric acid phosphide, P -3 H 3P (aq) Oxalic acid oxalate, C 2O -2 4 H 2C 2O 4 (aq)
Part C: Nomenclature of Simple Binary Covalent Compounds 1. Which of the following non-metals would you write first in a covalent compound's name or formula? oxygen or nitrogen iodine or chlorine silicon or sulfur 2. Write the names or formulas as required for each of the following covalent compounds. Compound Cl 2O 6 CO H 2S ICl 5 N 2F 2 Br 3O 8 XeCl 4 SO 3 Name or Formula dichlorine hexaoxide carbon monoxide hydrogen sulfide iodine pentachloride dinitrogen difluoride tribromine octaoxide xenon tetrachloride sulfur trioxide tetraphosphorus decoxide P 4O 10 tricarbon disulfide C 3S 2 hydrogen iodide HI sulfur heptafluoride SF 7 dichlorine monoxide Cl 2O silicon tetrabromide SiBr 4 dinitrogen pentoxide N 2O 5 3. Why is it necessary to use prefixes in the names of covalent compounds? In covalent compounds, the neutral non-metal atoms involved can combine in a variety of ratios, producing several different compounds (containing the same elements). Thus prefixes are needed in their names to differentiate between these compounds, by indicating the number of atoms of each non-metal atom found in them. 4. In what cases do we not use prefixes in the names of covalent compounds? The prefix "mono" is dropped from the name of the first element when there is only one atom of that element present. Also, no prefixes at all are used in the names of covalent compounds containing hydrogen.