Chemistry Ionic Compounds Quiz

Binary Ionic Compounds

• Composed of ions from two different elements: one metal and one non-metal.
• Naming rules include writing the metal name first, writing the non-metal name with an "ide" suffix, crisscrossing charges, and reducing if necessary.
• Roman numerals are used for the metal to indicate oxidation states.

Ternary Compounds

• Consist of three elements: one metal and two non-metals.
• Naming involves writing the metal name followed by the name of the polyatomic ion.
• The polyatomic ion functions as a stable unit with a charge.

Roman Numerals

• Represent values up to seven as follows: I (1), II (2), III (3), IV (4), V (5), VI (6), VII (7).

Formulas for Specific Compounds

• Tin (IV) Oxide: SnO2
• Potassium Sulfate: K2SO4
• Iron (III) Nitrate: Fe(NO3)3

Assigning Charges

• New charges for elements in compounds are placed at the bottom of the element symbol.

Polyatomic Ions

• If a polyatomic ion has a subscript greater than one, enclose the ion in parentheses and indicate the new charge at the bottom.

Naming Compounds

• Cu2S: Copper(II) Sulfide
• Mn(NO3)3: Manganese Nitrite
• FePO4: Iron(III) Phosphate
• CoCr3: Cobalt(III) Carbonate

Binary Molecular Compounds

• Composed of two non-metals.
• First element retains its name; prefixes denote the number of atoms for the second element.
• The name of the second element has the "ide" suffix.

Prefixes for Molecular Compounds

• Mono (1), Di (2), Tri (3), Tetra (4), Penta (5), Hexa (6), Hepta (7), Octa (8), Nona (9), Deca (10).

Specific Compound Names

• N2O5: Dinitrogen Pentoxide
• CF4: Carbon Tetrafluoride
• NO2: Nitrogen Dioxide
• PCl5: Phosphorus Pentachloride
• Cl2O7: Dichlorine Heptoxide
• P4O6: Tetraphosphorus Hexoxide

Applications of Oxidation Numbers

• Oxidation numbers for non-metals are not used when naming binary ionic compounds.
• The sum of oxidation numbers in a compound must equal zero.

IUPAC Naming and Formulas

• PbO2: Lead(IV) Oxide
• Al2(SO4)3: Aluminum Sulfate
• CrCO3: Chromium(II) Carbonate
• Na2SO4: Sodium Sulfate
• TiO: Titanium(II) Oxide
• MgCl2: Magnesium Chloride
• AlBr3: Aluminum Bromide
• SnS2: Tin(IV) Sulfide
• FeCl3: Iron(III) Chloride
• PbO: Lead(II) Oxide
• Mg3(PO4)2: Magnesium Phosphate
• SO4-2: Sulfate ion with a charge of -2.

Chemical Formulas

• Nickle(II) Chloride: NiCl2
• Ammonium Sulfate: (NH4)2SO4
• Magnesium Nitride: Mg3N2
• Mercury(I) Sulfide: Hg2S
• Carbon Monoxide: CO
• Calcium Phosphate: Ca3(PO4)2

Names from Formulas

• Na2S: Sodium Sulfide
• NH4Cl: Ammonium Chloride
• CuF: Copper(I) Fluoride
• CuF2: Copper(II) Fluoride
• PbSO4: Lead(II) Sulfate
• Hg(NO3)2: Mercury(II) Nitrate
• Al2O3: Aluminum Oxide
• N2O4: Dinitrogen Tetroxide