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Chemistry Chapter 7

Chemistry Chapter 7. Chemical Formulas. Binomial nomenclature : two-name system of naming compounds containing two elements. Always ends with _________ide. Ex: sodium chloride NaCl lithium chloride LiCl magnesium fluoride MgF 2.

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Chemistry Chapter 7

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  1. Chemistry Chapter 7 Chemical Formulas

  2. Binomial nomenclature: two-name system of • naming compounds containing two elements. • Always ends with _________ide. Ex: sodium chloride NaCl lithium chloride LiCl magnesium fluoride MgF2 Element with the positive charge written first. Charge taken from the pariodic table.

  3. new system old system new system old system Cu+1 copper (I) cuprous Hg +1 mercury (I) mercurous Cu+2 copper (II) cupric Hg +2 mercury (II) mercuric Fe +2 iron (II) ferrous Sn +2 tin (II) stannous Fe+3 iron (III) ferric Sn +4 tin (IV) stannic Pb +2 lead (II) plumbous Pb +4 lead (IV) plumbic Charges of Common Polyatomic Ions -3 -2 -1 phosphate, PO4-3 sulfate, SO4-2 chlorate, ClO3-1 carbonate, CO3-2 nitrate, NO3-1 oxalate, C2O4-2 acetate,CH3COO-1 tartrate, C4H4O6-2 hydroxide, OH-1 cyanide, CN-1 per _____________ ate _____________ ate (most common) _____________ ite ammonium, NH4+1 hypo _____________ ite

  4. Manganese (IV) oxide Cobalt (III) oxide Mercury (II) oxide Manganese (II) phosphide Sodium oxide Co2O3 CuO KF BaI2 PbBr2 MnO2 Co2O3 HgO Mn3P2 Na2O cobalt (III) oxide copper (II) oxide potassium fluoride barium iodide lead (II) bromide

  5. polyatomic ion: charged particle made of more than one atom persulfate persulfate perphosphate PO5-3 SO5-2 ClO4-1 sulfate chlorate phosphate ClO3-1 PO4-3 SO4-2 chlorite sulfite phosphite ClO2-1 SO3-2 PO3-3 hypochlorite hyposulfite hypophosphite PO2-3 SO2-2 ClO-1

  6. Examples: calcium chlorate potassium sulfate magnesium phosphate

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