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Compound Names and Formulas

Compound Names and Formulas. Binary Ionic Compounds Binary Molecular Compounds Polyatomic Ionic Compounds Organic Hydrocarbons Acids. Binary Ionic Compounds. Compounds composed of a metal cation and a nonmetal anion First name is the name of the metal

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Compound Names and Formulas

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  1. Compound Names and Formulas • Binary Ionic Compounds • Binary Molecular Compounds • Polyatomic Ionic Compounds • Organic Hydrocarbons • Acids

  2. BinaryIonic Compounds • Compounds composed of a metal cation and a nonmetal anion • First name is the name of the metal • Second name is the name of the nonmetal with an ide suffix • Ex. NaCl is sodium chloride

  3. Molecular Binary compounds • Composed of two elements both of which are nonmetals. • No ions present • First name is name of the first element with prefix • Second name is name of second element with prefix • Prefix indicates subscript number: mono, di, tri, tetra, penta, hexa, hepta, octa, nona and deca • Ex: Carbon monoxide – CO2

  4. Polyatomic Ionic Compounds • Composed of metal cation and anion made up of two or more nonmetal atoms with a net negative charge • First name is name of metal cation • Second name is name of polyatomic anion • Ex. Sodium sulfate – Na2SO4

  5. Organic Compounds • Hydrocarbons are made up of carbon and hydrogen atoms • Alkanes have the formula: CnH2n+2 • Prefix defines the n value: n=1-9 meth, eth, pro, but, pent, hex, hept, oct, non, and dec • Name ends with ane suffix • Ex: methane – CH4

  6. Binary Acids • All acids contain hydrogen ion: H+ • In binary acids the anions is a monoatomic nonmetal anion • Generic formula: HA • Prefix: hydro Suffix: ic • Ex. Hydrochloric acid - HCl

  7. Polyatomic Acids • All acids contain hydrogen ion: H+ • In polyatomic acids the anion is a polyatomic anion • Generic formula: HA • Prefix: none(unless polyatomic anion name has one) Suffix: ic(ate) or ous(ite) • Ex. chloric acid – HClO3 • Ex: hypochlorous acid – HClO

  8. Writing formula for ionic compounds from formula • MxAy will be MyAx • Example: Calcium(2+) nitrate(1-) – Ca(NO3)2 • Ammonium(1+) carbonate (2-) – (NH4)2CO3

  9. Writing Molecular formula from name for binary molecular formulas • Prefix indicates subscripts for that element • Dinitrogen pentoxide: N2O5

  10. Writing Alkane formula from name • Prefix indicates carbon subscript, H subscript is 2n+2 • Ethane: C2H6

  11. Writing Acid Formula from Name • First determine if it is binary, it will have a hydro prefix and ic suffix • All acid formulas begin with hydrogen ion • Treat them like an ionic binary compound • Determine anion element and charge • Ex: hydrosulfuric acid – H2S

  12. Polyatomic acids • Determine the anion and its charge • Treat it like a polyatomic ionic compound • Ex: nitric acid – HNO3 • Ex: phosphoric acid – H3PO4

  13. Quiz Time!

  14. Identify the formula for:barium nitrate • A. Ba3N2 • B. Ba(NO2)2 • C. BaNO2 • D. BaNO3 • E. Ba(NO3)2

  15. Identify the formula for:chromium (III) phosphate • A. Cr3PO3 • B. Cr3(PO4)2 • C. Cr2(PO4)3 • D. CrPO4 • E. Cr3(PO4)3

  16. Identify the formula for:Ammonium nitrate • A. NH4NO3 • B. NH4NO2 • C. NH3NO3 • D. NH3NO2 • E. (NH4)NO2

  17. Identify the formula for:Copper (II) bromide • A. CuBr • B. CuBrO3 • C. Cu(BrO3)2 • D. CuBr2 • E. Cu(BrO4)2

  18. Identify the formula for:Copper (II) bromide • A. CuBr • B. CuBrO3 • C. Cu(BrO3)2 • D. CuBr2 • E. Cu(BrO4)2

  19. Identify the formula for:Sulfur Hexafluoride • A. SF • B. SF6 • C. SF4 • D. S4F6 • E. SF8

  20. Identify the formula for:Octane • A. C6H6 • B. C6H12 • C. C8H8 • D. C8H16 • E. C8H18

  21. Identify the formula for:Hydroiodic Acid • A. HI • B. H2I • C. HIO3 • D. HIO2 • E. HIO4

  22. Identify the formula for:Sulfuric Acid • A. HS • B. H2S • C. H2SO4 • D. H2SO3 • E. H3SO3

  23. Identify the formula for:Tetraphosphorus Decoxide • A. PO5 • B. P2O5 • C. P4O8 • D. P4O10 • E. P5O10

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