1 / 17

Naming Compounds & Writing Formulas

Naming Compounds & Writing Formulas. Naming Compounds & Writing Formulas. Binary compounds with standard group charges Format: Metal Non-metal i.e. NaCl , Al 2 O 3 Subscript tells number of atoms in molecule Ones are not written. Criss -cross. Aluminum & oxygen Al +3 O -2 Aluminum oxide

vivi
Télécharger la présentation

Naming Compounds & Writing Formulas

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Naming Compounds & Writing Formulas

  2. Naming Compounds & Writing Formulas • Binary compounds with standard group charges • Format: Metal Non-metal i.e. NaCl, Al2O3 • Subscript tells number of atoms in molecule • Ones are not written

  3. Criss-cross • Aluminum & oxygen • Al+3O-2 • Aluminum oxide • Cross with number not sign -> Al2O3 2 3

  4. Criss-cross • Calcium & fluorine • Ca+2F-(1) • Aluminum oxide -> Ca1F2 -> CaF2(don’t write 1’s) 2 1

  5. Criss-cross • Potassium & oxygen • K+(1)O-2 • Potassium oxide -> K2O1 -> K2O 1 2

  6. Criss-cross • Aluminum & nitrogen • Al+3N-3 • Aluminum nitride -> Al3N3 -> AlN(lowest ratio) 3 3

  7. Cations with more than 1 charge • Compounds including cations with more than 1 possible charge (cation name followed by Roman numeral) • Roman numeral tells oxidation number/cation charge • Compound will have 2 names – stock name & classical name • Look at chart for classical name

  8. Criss-cross • Chromium (III) & oxygen • Cr+3O-2 • Chromium (III) oxide • Chromic oxide -> Cr2O3 3 2

  9. Criss-cross • Lead (IV) & nitrogen • Pb+4N-3 • Lead (IV) nitride • Plumbic nitride -> Pb3N4 4 3

  10. Criss-cross • Manganese (III) & phosphorus • Mn+3P-3 • Manganese (III) & phosphide • Manganic & phosphide -> MnP(lowest ratio) -> Mn3P3 3 3

  11. Criss-cross • Lead (IV) & sulfide • Pb+4S-2 • Lead (IV) sulfide • Plumbic sulfide -> Pb2S4 -> PbS2(lowest ratio) 2 4

  12. Polyatomic ions • Many atom ions (poly = many) • Endings – -ate, -ite • ide(hydroxide, cyanide) <- most likely to cause problems • ium (ammonium, cation) • DO NOT CHANGE ENDINGS

  13. Criss-cross • Aluminum & sulfate • Al+3SO4-2 • Aluminum sulfate -> Al2(SO4)3 2 3

  14. Criss-cross • Calcium & phosphate • Ca+2PO4-3 • Calcium phosphate -> Ca3(PO4)2 2 2

  15. Criss-cross • Calcium & sulfite • Ca+2SO-2 • Calcium sulfite -> CaSO3(lowest ratio) -> Ca2(SO3)2 2 3

  16. Criss-cross • Aluminum & phosphate • Al+3PO4-3 • Aluminum phosphate -> Al3(PO4)3 -> AlPO4 (lowest ratio) 3 3

  17. Criss-cross • Lead (IV) & oxalate • Pb+4C2O4-2 • Lead (IV) oxalate • Plumbic oxalate -> Pb2(C2O4)4 -> Pb(C2O4)2(lowest ratio) 4 2

More Related