Announcements
Naming ionic compounds
Tuesday, February 21, 2012
Exam 1 answer key is posted and grades have been
updated in D2L. Please let me know ASAP if anything is
incorrect.
MasteringChemistry due dates (all at 11:59 pm):
Ch 5b: Fri, Feb 24
Ch 5c: Fri, Mar 2
Ch 6: Tue, Mar 6
Ch 7: Fri, Mar 9
An updated calendar is available in Notes/Handouts.
No experiment in lab this week - optional Q&A sessions
Come with exam questions if you need help
Write the formula for magnesium oxide:
Ion pair
Formula
aluminum selenide
lithium phosphide
barium sulfide
barium chloride
Types of binary compounds (two elements only):
Fixed-charge
ionic
Exp 9 in lab next week. Video/quiz now available.
Variablecharge ionic
Ions?
Elements?
Example:
02-ch5c Page 1
02-ch5c Page 2
Molecular
Polyatomic ions
Compounds with polyatomic ions
Polyatomic ions are multi-atom ions (charged molecules)
CuSO4
You must have these memorized for quiz 2 (after exam 1)
(Memorize their names, formulas, and charges!)
CuSO3
Cu2SO4
acetate
ammonium
bicarbonate
carbonate
chlorate
cyanide
hydroxide
nitrate
phosphate
sulfate
C2H3O2NH4+
HCO3- (a.k.a. hydrogen carbonate)
CO32ClO3CNOHNO3PO43SO42-
Cu2SO3
Cu2S
copper(II) nitrate
ammonium phosphate
Mn(ClO)3
MnClO3
Convert an -ate ending to -ite by removing one oxygen.
NaClO
For halogens (Cl, Br, I):
ClOClO2ClO3ClO4-
calcium hydroxide
sodium bicarbonate
titanium(VI) phosphate
02-ch5c Page 3
02-ch5c Page 4