University:
Felician University
Course:
CHEM-105 | Principles of Chemistry
Academic year:

2023
Views:

400

Pages:

2
Author:

StellarStrategist

Formulas and Naming Practice Name: Answer Key Date: Per: 1. Put the correct charges on the following ions. Ions: Na⁺, Ca²⁺, Al³⁺, NH₄⁺, Mg²⁺, Fe(III) 2. Fill in the table with the formulas of the compounds made from the appropriate pairs of ions. Remember that the POSITIVE ion comes FIRST. Ions | Na⁺ | Ca²⁺ | Al³⁺ | NH₄⁺ | Mg²⁺ | Fe(III) -------|-----|-----|-----|-----|-----|----- Cl⁻ | NaCl | CaCl₂ | AlCl₃ | NH₄Cl | MgCl₂ | FeCl₃ O²⁻ | Na₂O | CaO | Al₂O₃ | (NH₄)₂O | MgO | Fe₂O₃ N³⁻ | Na₃N | Ca₃N₂ | AlN | (NH₄)₃N | Mg₃N₂ | FeN OH⁻ | NaOH | Ca(OH)₂ | Al(OH)₃ | NH₄OH | Mg(OH)₂ | Fe(OH)₃ SO₄²⁻ | Na₂SO₄ | CaSO₄ | Al₂(SO₄)₃ | (NH₄)₂SO₄ | MgSO₄ | Fe₂(SO₄)₃ PO₄³⁻ | Na₃PO₄ | Ca₃(PO₄)₂ | AlPO₄ | (NH₄)₃PO₄ | Mg₃(PO₄)₂ | FePO₄ 3. Name the chemical compounds. Here are the rules: a. Representative metal cation + representative anion = metal name + anion name with ide ending b. Transition metal cation + representative anion = metal (roman numeral for the charge of the ion) + anion name with ide ending c. If the cation or anion is a polyatomic ion, just use the name of the ion (don't add ide) d. Covalent bonds use prefixes (mono, di, tri, tetra, penta, hexa, hepta, octo plus ide at the end) 1 4. Turn the following names into formulas. Make sure all compounds are neutral. lead(IV) hydroxide Pb(OH)₄ sulfur dioxide SO₂ dichlorine monoxide Cl₂O mercury(II) acetate Hg(C₂H₃O₂)₂ nitrogen tribromide NBr₃ aluminum nitride AlN manganese(III) dichromate Mn₂(Cr₂O₇)₃ ammonium dihydrogen phosphate NH₄H₂PO₄ dinitrogen tetrafluoride N₂F₄ Tin(II) fluoride SnF₂ Mercury(I) peroxide Hg₂O₂ sulfur hexachloride SCl₆ sodium bromide NaBr Iron(II) chlorate Fe(ClO₃)₂ Gallium sulfide Ga₂S₃