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Cations (positive ions). Anions (negative ions). Acids (H+ and anion). H+. Hydrogen ion (proton). H–. Hydride ion. NH4. + Ammonium ion. F–. Fluoride ion…
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H+^ Hydrogen ion (proton) H–^ Hydride ion NH 4 +^ Ammonium ion F–^ Fluoride ion…………………………………… … HF Hydrofluoric acid Main Group Ions Cl –^ Chloride ion…………………………………… … HCl Hydrochloric acid Li+^ Lithium ion Br –^ Bromide ion…………………………………… … HBr Hydrobromic acid Na+^ Sodium ion I –^ Iodide ion …………………………………… … HI Hydroiodic acid K+^ Potassium ion O^2 –^ Oxide ion Rb+^ Rubidium ion OH–^ Hydroxide ion Cs+^ Cesium ion O 22 –^ Peroxide ion Be2+^ Beryllium ion S^2 –^ Sulfide ion ……………………………………… H 2 S Hydrosulfuric acid Mg^2 Magnesium ion HS–^ Hydrogen sulfide ion Ca2+^ Calcium ion Se^2 –^ Selenide Ion Sr2+^ Strontium ion N^3 –^ Nitride ion Ba2+^ Barium ion N 3 –^ Azide ion AI3+^ Aluminum ion P^3 –^ Phosphide ion Sn2+^ Tin(II) (stannous) ion As^3 -^ Arsinide ion Sn4+^ Tin(IV) (stannic) ion C^4 –^ Carbide ion Pb2+^ Lead(II) (plumbous) ion CN–^ Cyanide ion…………………………………… … HCN Hydrocyanic Acid Pb4+^ Lead(IV) (plumbic) ion Oxoanions Oxoacids Sb3+^ Antimony(III) (antimonous) ion CIO 1 –^ Hypochlorite ion……………………………… … HCIO Hypochlorous acid Sb5+^ Antimony(V) (antimonic) ion CIO 2 –^ Chlorite ion…………………………………… … HCIO 2 Chlorous acid Bi3+^ Bismuth(III) (bismuthous) ion CIO 3 –^ Chlorate ion…………………………………… … HCIO 3 Chloric acid Bi5+^ Bismuth(V) (bismuthic) ion ClO 4 –^ Perchlorate ion ……………………………… … HClO 4 Perchloric acid Transition metal ions SO 32 –^ Sulfite ion……………………………………… … H 2 SO 3 Sulfurous acid Cr2+^ Chromium(II) (chromous) ion SO 42 –^ Sulfate ion ……………………………………… H 2 SO 4 Sulfuric acid Cr3+^ Chromium(III) (chromic) ion HSO 4 –^ Hydrogen sulfate ion (bisulfate ion) Mn2+^ Manganese(II) (manganous) ion S 2 O 32 -^ Thiosulfate ion …………………………………^ H 2 S 2 O 3 Thiosulfuric acid Mn3+^ Manganese(III) (manganic) ion NO 2 –^ Nitrite ion ………………………………………… HNO 2 Nitrous acid Fe2+^ Iron(II) (ferrous) ion NO 3 –^ Nitrate ion………………………………………… HNO 3 Nitric acid Fe3+^ Iron(III) (ferric) ion PO 33 –^ Phosphite ion………………………………… … H 3 PO 3 Phosphorous acid Co2+^ Cobalt(II) (cobaltous) ion PO 43 –^ Phosphate ion………………………………… … H 3 PO 4 Phosphoric acid Co3+^ Cobalt(III) (cobaltic) ion HPO 42 –^ (Mono)hydrogen phosphate ion Ni2+^ Nickel(II) (nickelous) ion H 2 PO 4 –^ Dihydrogen phosphate ion Ni3+^ Nickel(III) (nickelic) ion CO 32 –^ Carbonate ion………………………………… … H 2 CO 3 Carbonic Acid Cu+^ Copper(l) (cuprous) ion HCO 3 –^ Hydrogen carbonate ion (bicarbonate ion) Cu2+^ Copper(II) (cupric) ion C 2 O 42 –^ Oxalate ion ……………………………………… H 2 C 2 O 4 Oxalic acid Ag+^ Silver(I) ion NCO–^ Cyanate ion…………………………………… … HOCN Cyanic Acid Au+^ Gold(I) (aurous) ion OCN–^ Isocyanate ion…………………………………… HNCO Isocyanic acid Au3+^ Gold(III) (auric) ion SCN–^ Thiocyanate ion……………………………… … HNCS Thiocyanic Acid Zn2+^ Zinc ion CrO 42 –^ Chromate ion ………………………………… … H 2 CrO 4 Chromic acid Cd2+^ Cadmium ion Cr 2 O 72 –^ Dichromate ion ……………………………… … H 2 Cr 2 O 7 (Di)C hromic acid Hg 2 2+^ Mercury(I) (mercurous) ion MnO 4 –^ Permanganate ion Hg2+^ Mercury(II) (mercuric) ion # of Water Prefix 1 Mono 2 Di 3 Tri 4 Tetra 5 Penta 6 Hexa 7 Hepta 8 Octa 9 Nona 10 Deca
Name: (Cation)(anion) (prefix)hydrate (If # = 0 hydrate is omitted) Formula: (Cation)m(Anion)n·(#)H 2 O (If # = 0 H 2 O is omitted)
Cations on the left, anions on the right, charge must cancel Strontium Chloride = Strontium ions and Chloride ions = Sr+2^ and Cl‐^ = SrCl 2 Multiples of polyatomic ions require parenthesis Ammonium Sulfate = Ammonium ions and Sulfate ions = NH 4 +^ and SO 42 ‐^ = (NH 4 ) 2 SO 4 Calcium Phosphate = Calcium ions and Phosphate ions = Ca2+^ and PO 43 ‐^ = Ca 3 (PO 4 ) 2 Waters of hydration (use table to left) copper(II) sulfate pentahydrate = CuSO 4 ∙5H 2 O (^) 11 Undeca
1 Mono H 2 Hydrogen N 2 Nitrogen 2 Di O 2 Oxygen NH 3 Ammonia 3 Tri O 3 Ozone NO Nitrogen monoxide (Nitric Oxide) 4 Tetra H 2 O Water (Dihydrogen Monoxide) NO 2 Nitrogen dioxide 5 Penta F 2 Fluorine N 2 O Dinitrogen monoxide (Nitrous oxide) 6 Hexa HF Hydrogen fluoride N 2 O 2 Dinitrogen dioxide 7 Hepta Cl 2 Chlorine N 2 O 4 Dinitrogen tetroxide 8 Octa HCl Hydrogen chloride CO Carbon monoxide 9 Nona Br 2 Bromine CO 2 Carbon dioxide 10 Deca I 2 Iodine CCl 4 Carbon tetrachloride
(Other group prefixes)(longest chain prefix)(highest bond root)(most important group suffix) Bond Order Name Drawn Root Formula Carbon Chain Prefix 1 Single C-C ane CnH2n+2 # Systematic Common ** 2 Double C=C ene CnH2n 1 Methyl Formyl 3 Triple C ≡ C yne CnH2n- 2 Carbon has 4 bonds In formula: Groups - 1 H Other C-C bonds - 2 H (^) 2 Ethyl Acetyl 3 Propyl Propionyl Group Name Drawn Prefix Suffix 4 Butyl Butyryl Amine - NH 2 Amino amine 5 Pentyl Valeryl Ammonium ion - NH 3 +^ ammonium ion 6 Hexyl Caproyl 7 Heptyl Enanthyl Carboxylic acid* or - COOH or - CO 2 H^ Carboxyl oic acid 8 Octyl Caprylyl 9 Nonyl Pelargonyl Carboxylate ion * or - COO- (^) or - CO 2 -^ oate ion 10 Decyl Capryl Alcohol - OH Hydroxy ol Drop ‘yl’ from prefix for longest chain
**- F Fluoro
Name Formula Systematic Name Common Name Formula Name Formula Methane CH 4 Methanoic acid Formic acid HCO 2 H 1,2-Dichloroethane C 2 H 4 Cl 2 Ethane C 2 H 6 Ethanoic acid Acetic acid CH 3 CO 2 H Methylamine CH 3 NH 2 Propane C 3 H 8 Propanoic acid Propionic acid C 2 H 5 CO 2 H Methylammonium ion CH 3 NH 3 + Butane C 4 H 10 Butanoic acid Butyric acid C 3 H 7 CO 2 H 1,3-butadiene C 4 H 6 Pentane C 5 H 12 Pentanoic acid Valeric acid C 4 H 9 CO 2 H Hydroxyethanoic acid HOCH 2 CO 2 H Methanol CH 3 OH Methanoate ion Formate ion HCO 2 -^ Phenol C 6 H 5 OH Ethanol C 2 H 5 OH Ethanoate ion Acetate ion CH 3 CO 2 - Propanol C 3 H 7 OH Propanoate ion Propionate ion C 2 H 5 CO 2 -^ Special Names Formula Butanol C 4 H 9 OH Butanoate ion Butyrate ion C 3 H 7 CO 2 -^ Benzene C 6 H 6 Pentanol C 5 H 11 OH Pentanoate ion Valerate ion C 4 H 9 CO 2 -^ Toluene C 6 H 5 CH 3
Example C 2 H 6 O CH 3 CH 2 OH Name Molecular Formula Condensed Molecular Formula Structural Formula Line Formula