Ionic and Covalent Bonds Study Guide
Be able to define the following terms:





covalent bond
Lewis structure
molecule
oxyacid
binary acid





 ion
 polyatomic ion
 oxidation
number
 valence electron
resonace
anion
cation
chemical bond
ionic bond
1.
In a chemical formula, the number of each type of atom in the compound is
shown by numbers called ____.
2.
A group of covalently bonded atoms that acts together as one charged atom is a
____.
3.
The elements that make up a compound and the exact number of atoms of each
element in a unit of the compound can be shown in a ____.
4.
A chemical bond that occurs when atoms share electrons is a(n) ____ bond.
5.
The ____ tells you how many electrons an atom must gain, lose, or share to
become stable.
6.
The sum of the oxidation numbers in a neutral compound is always ____.
7.
The oxidation number of an atom is shown with a ____.
8.
How many electrons are needed in the outer energy levels of most atoms for the
atom to be chemically stable?
9.
Why do the noble gases NOT form compounds readily?
10. What is the total number of atoms in the compound Ca(ClO3)2?
11. Explain why it is correct to say that a compound like calcium carbonate, CaCO3,
contains both ionic and covalent bonds.
12. Name or write the formulas for the following ionic compounds:
a.
Al2O3
d.
manganese (V) oxide
b.
NH4Cl
e.
calcium chloride
c.
FeO
f.
lead (IV) nitrate
13. Name or write the formulas for the following covalent compounds
a. P2O5
d. carbon tetrachloride
b. HF
e. hydrochloric acid
c. HClO
f. carbonic acid
Mole Calculations
Define the following terms:
 Avogadro’s number
 Molar mass
 Mole
 Percent Composition
Determine the molar mass of the following:
1.
magnesium oxide
2.
sodium hydroxide
3.
nitrogen gas
4.
How many grams are in 4.5 moles of sodium fluoride, NaF?
5.
How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3?
6.
How many chlorine atoms are in 84.6 grams of aluminum chloride?
Determine the percent composition of each element in the following compounds:
7.
magnesium hydroxide
8.
water