Assignment # 5 Key Chemistry 0500A Fall 2011 Chapter 7: 2, 4, 8, 14, 18, 20, 24, 36, 40, 46, 54, 62 & 74. 2. Compound Classification Compound Classification (a) N2H4 binary molecular (b) NaNO2 ternary ionic (c) Co3N2 binary ionic (d) HNO2(aq) ternary acid 4. Ion Classification Ion Classification (a) H3O+ polyatomic cation (b) Co3+ monoatomic cation (c) P3– monoatomic anion (d) C2H3O2– polyatomic anion 8. Monoatomic Cation Chemical Formula (a) zinc ion Zn2+ (b) strontium ion Sr2+ (c) tin(IV) ion Sn4+ (d) manganese(II) ion Mn2+ 14. Monoatomic Anion Systematic Name (a) O2– oxide ion (b) S2– sulfide ion (c) N3– nitride ion (d) P3– phosphide ion 18. Polyatomic Ion Chemical Formula (a) chromate ion CrO42– (b) permanganate ion MnO4– (c) cyanide ion CN– (d) perchlorate ion ClO4– 20. Constituent Ions Chemical Formula (a) Al3+ + 3 Br– AlBr3 (b) Cd2+ + S2– CdS (c) 3 Mg2+ + 2 P3–– Mg3P2 (d) Pb4+ + 4 F– PbF4 24. Constituent Ions Chemical Formula (a) Pb4+ + 2 SO42– Pb(SO4)2 (b) Sn2+ + 2 ClO2– Sn(ClO2)2 (c) Co2+ + 2 OH– Co(OH)2 (d) 3 Hg22+ + 2 PO43– (Hg2)3(PO4)2 36. Ternary Ionic Compound Stock System Name (a) KClO3 potassium chlorate (b) Mg(NO3)2 magnesium nitrate (c) Ag2SO4 silver sulfate (d) Al2(CrO4)3 aluminum chromate 40. Ternary Ionic Compound Chemical Formula (a) cuprous chlorite CuClO2 (b) plumbic sulfite Pb(SO3)2 (c) mercuric chlorate Hg(ClO3)2 (d) ferrous chromate FeCrO4 46. Binary Molecular Compound Systematic Name (a) BrCl bromine monochloride (b) SF6 sulfur hexafluoride (c) I4O9 tetraiodine nonaoxide (d) Cl2O7 dichlorine heptaoxide 54. Systematic Name Ternary Oxyacid (a) carbonic acid H2CO3(aq) (b) nitrous acid HNO2(aq) 62. Ions
chloride ion
sulfide ion
phosphide ion
copper(I)
CuCl Cu2S Cu3P ion
copper(I) chloride
copper(I) sulfide
copper(I) phosphide
cobalt(III)
CoCl3
Co2S3
CoP
ion
cobalt(III) chloride
cobalt(III) sulfide
cobalt(III) phosphide
lead(IV)
PbCl4
PbS2
Pb3P4
ion
lead(IV) chloride
lead(IV) sulfide
lead(IV) phosphide
74. Binary Compound Chemical Formula (a) boron tribromide BBr3 (b) trisilicon tetranitride Si3N4 (c) diarsenic trioxide As2O3 (d) diantimony pentaoxide Sb2O5