Honors Unit 4 Nomenclature

4.1 Naming Binary compounds Binary compounds – contain two different elements Three types Type 1: metal can only form one cation MgO K2S Type 2: metal can from two or more cations that have different charges FeO Fe2O3 Type 3: contain only nonmetals CO2 PCl5

Naming Compounds That Contain a Metal and a Nonmetal

Naming Compounds That Contain a Metal and a Nonmetal Type I Binary Ionic compounds

Naming Compounds That Contain a Metal and a Nonmetal For compounds containing both a metal and a nonmetal, the metal is always named first. The nonmetal is named from the root element name.

Name the following compounds CsF AlCl3 MgI2 K3N

When writing formulas of ionic compounds the net charge must be zero! To write formulas from names: Identify the ions involved and write their symbols Combine the ions to create an atom with a net charge of zero

Write the formula from the name: Calcium iodide Sodium oxide Aluminum nitride Strontium phosphide

Naming Compounds That Contain a Metal and a Nonmetal Type II Binary Ionic compounds Since the metal ion can have more than one charge, a Roman numeral is used to specify the charge.

Naming Compounds That Contain a Metal and a Nonmetal Type II Binary Ionic compounds

Write the formula for the following Iron (III) Iodide Titanium (III) Oxide Chromium (III) Phosphide Copper (I) Chloride Tin (IV) Sulfide

Name the following FeCl2 PbO2

Name the following FeS CuCl Hg2O SnS2

Naming Binary Compounds That Contain Only Nonmetals (molecular compounds) Type III Compounds

Naming Binary Compounds That Contain Only Nonmetals Type III Compounds

Name The Following: CO H2O Si3O6 P2Cl5

Writing formulas from names for type III Use the prefixes in the name to tell how many of each atom there are in the compound DO NOT balance out charges as you do with Ionic compounds

Write the formula from the name Carbon Tetrachloride Sulfur Hexaflouride Tetraphosphorus Decoxide Dinitrogen Monoxide

Naming Binary Compounds: A Review

Naming and Writing formulas for more Complex Compounds

Naming Compounds That Contain Polyatomic Ions Polyatomic ions are charged entities composed of several atoms bound together. They have special names and must be memorized.

Naming ionic compounds containing polyatomic ions follows rules similar to those for ionic binary compounds. But do not change the ending to -ide ammonium acetate

Name the following: KOH Ca(NO3)2 Na2SO4 (NH4)3PO4

When writing formulas from names balance charges as you do with ionic compounds Sodium Phosphate Calcium Nitrate Aluminum hydroxide Potassium carbonate

Naming Acids An acid is a molecule with one or more H+ ions attached to an anion.

Naming Acids

Naming Acids

Naming Acids

HCl HC3H3O2 HNO2 H3PO4

Naming Acids

Naming: All mixed up! NaBr HSO3 Cu2O P4O5

Writing Formulas from Names: All mixed up! Sodium sulfite Magnesium carbonate Sulfuric acid Dinitrogen pentoxide Cobalt(III) nitrate