chapter 2

  • mass/atomic

    • big/small

  • atomic weight = avg atomic mass

  • mercury:

    • hg +2 → mercury (II)

    • hg2 +2 → mercury (I)

  • acetate: c2h3o2-

  • oxalate: c2o4-

  • Cl + O

    • ClO-: hypochlorite

    • ClO2-: chlorite

    • ClO3-: chlorate

      • like sulfite and sulfate

    • ClO4-: perchlorate

  • chromate: cro4 2-

  • dichromate: cr2o7 2-

  • hydride, oxide, nitride, sulfide, chloride, iodide, cyanide (CN-), phosphide

  • n + o compounds are -1

  • s + o are -2

  • h + s + o are -1 

  • molecular (nonmetals): use the roman stuff

  • acids:

    • ate → _ic acid

    • ite → _ous acid

    • ide → hydro_ic acid

  • oxoacids:

    • hypo_ite → hypo_ous acid

    • _ite → _ous acid

    • _ate → _ic acid

    • per_ate → per_ic acid

  • hydrates: compound name + roman prefix hydrate

    • like pentahydrate