CP07 – Oxidation States

Date:

• Monday, September 12th

Class Business

• homework – questions?
• memorization questions?

Quiz – Oxidation Numbers

• student provides sheet of paper
• Q provides periodic table
• Q reads name of element
• Student writes name / symbol / oxidation number
• only 10 questions – grade in class

New Material – Formulas

• sum oxidation states = zero
• (also sum = charge of ion)
• remember – an element could have more than one possibility
• rules for assigning

Practice – Determine Oxidation Number for Each Element (show support)

• BaO
• CaCl2
• H2O
• Mg3N2
• H2CO3
• Fe(NO3)2
• ZnF2
• Al2O3
• P2O5

Homework (for Thursday)

• Study for Quiz #2
• second and third parts of “Oxidation Numbers” sheet
• transition metals and polyatomic ions
• only provided periodic table