Chapter 7 Chemistry Nomenclature
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Binary Compounds are composed of two elements.
Binary Ionic Compounds Named...
Binary Ionic Compounds are named by combining the names of the positive and negative ions.
Ions formed from a single atom.
An ionic compound composed of a cation and the anion from an acid is often referred to as a salt.
Polyatomic ions that contain oxygen.
Ionic Compound (transfer e-)
Metal/Nonmetal; Example- MgCl2 Magnesium Chloride
Are molecular compounds composed solely of carbon and hydrogen.
Consists of a lattice of positive and negative ions held together by mutual attraction.
- This system uses Roman numerals to indicate an ion's charge. The numeral is enclosed in parentheses and placed immediately after the metal name.
- CuCl2 copper(ll) chloride.
Naming Binary Molecular Compounds
- The old system of naming molecular compounds is based on the use of prefixes.
- CCL4 -Carbon Tetrachloride
Covalent Network Compounds
- Similar to naming molecular compounds.
- SiC- Silicon Carbide
- SiO2- Silicon Dioxide
Are acids that consists of two elements, usually hydrogen and one of the halogens.
Are acids that contain hydrogen, oxygen, and a third element (usually a nonmetal).
Oxidation Numbers/Oxidation States
- Hydrogen: +1
- Oxygen: -2
- Halogens: -1
- Metal/Nonmetal; a neutral exchange of e-
- Example: FeO Iron(ll) Oxide
- Example: Sr(OH)2 Strontium Hydroixide
- Salt w/water molecules; name= salt x #Hydrate
- Example:PbO2 Lead(lV) Oxide Hexahydrate
- Nonmetal/Nometal; covalent bonds share e-
- Name= #element #-ide
- Example:P2O5 Diphoshorous Pentaoxide
- Single bonds between C: ane
- Double bonds between C: ene
- Alcohol- OH
- 1-methyl (MeEatPeanutButter)
- Meth- One Carbon Ane- Single Bonds (Carbon has four bonding sites so four single bonds)
- H+ -ide = Hydro__ic Acid (NO O!!!)
- H+ -ate = ____ic Acid
- H+ -ite = ____ous Acid
- Example: Phosphoric Acid H3PO4
- Example: HNO2 Nitrous Acid
- Example: H2S Hydrosulfuric Acid
Mass of water . . .. .
Can be refered to as a moleular mass.
Of any molecule, formula unit, or ion is the sum of the average atomic masses of all atoms represented in its formula.
Molar Mass & Formula Mass
Molar mass and formula mass are both numerically equal.
Consists of the symbols for the elements combined in a compound, with subscripts showing the smallest whole number ratio of different atoms in the compound.
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