Partial 3 Homework 1

Answer the following questions. Follow directions and show all of your work to avoid point deductions. Please be as neat and orderly as possible, as well as clear about your answers and work. I will not grade any homework that is not understandable, messy, or incomplete. Homework is due, Tuesday October 25th, 2011

I. Draw the Lewis structure of the following compounds. Show the compound’s formula, number of electrons and deduction as you use them to make the structure (just as the examples from class).

1. Bicarbonate 2. Thiosulfate 3. Nitric Acid 4. Dicarbon tetrahydride 5. Hydronium ion

II. Find the oxidation numbers of the following compounds. Identify whether it is an ionic or covalent compound; show the compound’s formula, rules used to find the oxidation numbers, and mathematical work wherever needed (just as the examples from class).

1. Copper (II) Sulfite 2. Carbon monoxide 3. Gallium (III) oxide 4. Lithium peroxide 5. Phosphate