iBar – A Solution To Ionic NamingKevin Cameron – Chemistry – Peachtree Ridge HSSarah Eales – Chemistry – Peachtree Ridge HSChristine Wahl – Chemistry – Peachtree Ridge HS

Who We Teach• Peachtree Ridge High School – Gwinnett County• Peachtree Ridge – 3500+ students• 10th Grade Chemistry• Peachtree Ridge has 3 levels: On-level, Pre-AP, & AP• We teach On-level

COMMON MISTAKESWE SEE

Common Errors

Given• Magnesium oxide• Dihydrogen dioxide• Copper (II) oxide• Sodium oxide

Incorrect Answer• Mg2O2

• HO• Cu2O

• NaO2

Our Solution• One method for ionic compounds• Easily identifiable as the solution for ionics• Remove as many “rules” as possible• Needs to work EVERY time

Ionic vs. Covalent

iBar

Given

Answer

Work AreaCation Side

Work AreaAnion Side

Example: Sodium chloride

Sodium chloride

NaCl

Na+ Cl-+1 -1

Example: Magnesium oxide

Magnesium oxide

MgO

Mg2+ O2-+2 -2

Example: Calcium chloride

Calcium chloride

CaCl2

Ca2+ Cl-+2 -1Cl- -2

X

Example: K2O

K2O

Potassium oxide

K+ O2-+2 -2K+

Example: Iron (III) oxide

Iron (III) oxide

Fe2O3

Fe3+ O2-+3 -2O2- -4

-6+6 Fe3+

O2-

XX

X

Example: Cu2O

Cu2O

Copper (I) oxide

Cu O2-+2 -2Cu

++

Example: Barium and Chlorine

Barium chloride

BaCl2

Ba2+ Cl-+2 -1Cl- -2

X

Example: Fe3O4

Fe3O4

BaCl2

Ba2+ Cl-+2 -1Cl- -2

X

PowerPoint Presentation

www.chemistrycameron.wikispaces.com

Session Evaluation: Friday

http://tinyurl.com/GSTA27