Exam 1 - Module 2 (ionic compounds and more)

Question 1

Ionic compounds

Answer 1

Ionic compounds always contain charges.

Charges must cancel out

Formula reflects smallest whole number ratio

Question 2

Zinc is always what charge?

Answer 2

2⁺

Question 3

How to balance out Ionic compound: Al³⁺ and O^2-

Answer 3

Al₂O₃

Question 4

Naming binary compounds

Answer 4

Name of cation (metal) + Base name of anion (nonmetal) + -ide

e.g. KCl -> Potassium Chloride

Question 5

Name the following compounds: LiC2H3O2, Mg(OH)2, Al2(SO4)3, BaCr2O7

Answer 5

Lithium acetate, Magnesium Hydroxide, Aluminum Sulfate, Barium Dichromate

Question 6

Ionic compounds with transition metals

Answer 6

More than one possible charge, use mathematic formula with roman numerals.

Question 7

Only transition metals you wont use roman numerals on?

Answer 7

Zinc(2+) and silver(1+)

Question 8

Naming Binary Molecular Compounds

Answer 8

Prefix + Name of first element + Prefix + Base name of second element +ide

E.g. Dinitrogen Monoxide N₂O

Question 9

Prefixes for molecular compound

Answer 9

1 - Mono
2- Di
3 - tri
4 - Tetra
5 - Penta
6 - Hexa
7 - Hepta
8 - Octa
9 - Nona
10 - Deca

Question 10

If first element in binary molecular compound is just 1, do you put mono in front?

Answer 10

No!

e.g. CO = Carbon Monoxide, NOT Monocarbon Monoxide

Question 11

Name this binary molecular compound: P₄S₁₀

Answer 11

Tetraphosphorus Decasulfide

Question 12

Do you reduce binary molecular compounds?

Answer 12

NO!!!

Question 13

Do you reduce ionic compounds?

Answer 13

YES!!!

Question 14

If there is no charge, there is not:

Answer 14

An ion

Question 15

Naming binary acids

Answer 15

Hydro + Base name of nonmetal +-ic + acid

E.g. HCl -> Hydrochloric acid

Question 16

Naming Oxoacids

Answer 16

Corresponds to polyatomic ion it came from.

Question 17

Oxyanion ending with -ate becomes:

Answer 17

-ic + acid

e.g. Acetate = Acetic acid

Question 18

Oxyanion ending with -ite becomes:

Answer 18

-ous + acid

e.g. Nitrite = Nitrous acid