AP Chemistry Memorization Quizzes
AP Chemistry is a difficult course, most schools have students take it both fall and spring
semesters. So, we will be starting at a disadvantage to some. AP Chemistry is not all
about memorization; however, having these items memorized is essential for success in
learning the concepts covered in the course.
The quizzes will cover six areas of memorization:
1) Polyatomic Ions (including name, symbol and charge)
2) Variable valences for transition metals
3) Rules for naming acids
4) Rules for naming ionic compounds
5) The solubility rules
6) Determining oxidation numbers
IF this seems like too much work for the next 15 weeks, please drop the course.
Advanced Placement Chemistry is a college level course. You will need to be dedicated and
work very hard if you are to be successful.
Some
1)
2)
3)
4)
things you may want to get to be successful in the class:
In your textbook and look over chapters 1-7. Take notes.
Pay attention in every class, and do your homework problems.
Look on iFolder at the syllabus and other files (chapter Power Points are on here)
Purchase your own copy of either 5 steps to a 5 on the AP: Chemistry or Cliffs AP
Chemistry or Cliffs AP 5 Chemistry exams or The Princeton Review: Cracking the AP
Chemistry exam.
Rules for Naming and Acid
When the name of the anion ends in –ide, the acid name begins with the prefix hydro-, the stem of the anion has
the suffix –ic and it is followed by the word acid.
-ide becomes hydro _____ic Acid
Cl- is the Chloride ion so HCl = hydrochloric acid
When the anion name ends in –ite, the acid name is the stem of the anion with the suffix –ous, followed by the word
acid.
-ite becomes ______ous Acid
ClO2- is the Chlorite ion so HClO2 = Chlorous acid.
When the anion name ends in –ate, the acid name is the stem of the anion with the suffix –ic, followed by the word
acid.
-ate becomes ______ic Acid
ClO3- is the Chlorate ion so HClO3 = Chloric acid.
Rules for Naming Ionic Compounds
1. Balance Charges (charges should equal zero)
2. Cation is always written first (in name and in formula)
3. Change the ending of the anion to -ide
Solubility Rules
1.
2.
3.
4.
5.
6.
All compounds containing alkali metal cations and the ammonium ion are soluble.
All compounds containing NO3-, ClO4-, ClO3-, and C2H3O2- anions are soluble.
All chlorides, bromides, and iodides are soluble except those containing Ag +, Pb2+, or Hg2+.
All sulfates are soluble except those containing Hg2+, Pb2+, Sr2+, Ca2+, or Ba2+.
All hydroxides are insoluble except compounds of the alkali metals, Ca 2+, Sr2+,and Ba2+.
All compounds containing PO43-, S2-, CO32-, and SO32- ions are insoluble except those that also
contain alkali metals or NH4+.
Rules for Determining Oxidation Number
Oxidation Number: A number assigned to an atom in a molecular compound or molecular ion that
indicates the general distribution of electrons among the bonded atoms.
1. The oxidation number of any uncombined element is O.
2. The oxidation number of a monatomic ion equal the charge on the ion.
3. The more electronegative element in a binary compound is assigned the number equal to the
4.
5.
6.
7.
8.
9.
charge it would have if it were an ion.
The oxidation number of fluorine in a compound is always –1
Oxygen has an oxidation number of –2 unless it is combined with F, when it is +2, or it is in a
peroxide, when it is –1.
The oxidation state of hydrogen in most of its compounds is+1 unless it combined with a metal, in
which case it is –1.
In compounds, the elements of groups 1 and 2 as well as aluminum have oxidation number of +1,
+2, and +3, respectively
The sum of the oxidation numbers of all atoms in a neutral compound is O.
The sum of the oxidation number of all atoms in a polyatomic ion equals the charge of the ion.
Variable Valences For Transition Metals
Name
Chromium
Cr
+2
Stock Name
Chromium (II)
Mn
+3
+2
Chromium (III)
Manganese (II)
Fe
+3
+2
Manganese (III)
Iron (II)
Co
+3
+2
Iron (III)
Cobalt (II)
Cu
+3
+1
Cobalt (III)
Copper (I)
Pb
+2
+2
Copper (II)
Lead (II)
Hg
+4
+1
Lead (IV)
Mercury (I)
Sn
+2
+2
Mercury (II)
Tin (II)
Au
+4
+1
Tin (IV)
Gold (I)
Ag
+3
+1
Gold (III)
Silver
Bi
+2(rarely)
+3
Silver (II)
Bismuth (III)
Sb
+5
+3
Bismuth (V)
Antimony (III)
Cadmium
Cd
+5
+2
Antimony (V)
Cadmium
Zinc
Zn
+2
Zinc
Manganese
Iron
Cobalt
Copper
Lead
Mercury
Tin
Gold
Silver
Bismuth
Antimony
Symbol
Charge
Polyatmic Ions
Name
ammonium
acetate
bromate
chlorate
chlorite
cyanide
dihydrogen phosphate
hypochlorite
hydrogencarbonate(bicarbonate)
hydrogen sulfate (bisulfate)
hydrogen sulfite (bisulfite)
hydroxide
iodate
nitrate
nitrite
perchlorate
permanganate
thiocyanate
carbonate
chromate
dichromate
oxalate
selenate
silicate
sulfate
sulfite
phosphate
phosphite
Symbol
NH4
C2H3O2
BrO3
ClO3
ClO2
CN
H2PO4
ClO
HCO3
HSO4
HSO3
OH
IO3
NO3
NO2
ClO4
MnO4
SCN
CO3
CrO4
Cr2O7
C2O4
SeO4
SiO3
SO4
SO3
PO4
PO3
Charge
+1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-3
-3