Name: ______________________
Date : _____________________
Durfee High School
Ionic & Covalent
9/12/14 Take Home Quiz
Part 1
8 Points
_____ 1. A covalent bond is formed by the _______________ of electrons.
A) transfer
B) alignment
C) sharing
D) creation
_____ 2. Covalent bonds are formed with the electrons from the:
A) cations
B) anions
C) both A&B
D) outer shell
_____ 3. Substances consisting of atoms that are covalently bonded are called _____________
compounds.
A) molecular B) ionic
C) divalent
D) none of the choices
_____ 4. A covalent bond where the bonding electrons are shared equally between two bonding
atoms is referred to as a ________________ covalent bond.
A) polar
B) nonpolar
C) both A&B
D) none of the choices
_____ 5. Molecules that are either polar or polar covalent can also be referred to as:
____________ groups.
A) covalent B) non-polar
C) dipoles
D) flagpoles
______6. Bonds between elements that have an electronegativity difference less than 0.4 are
considered to be:
A) ionic
B) covalent
C) polar covalent
D) nuclear
______ 7. Bonds between elements that have an electronegativity difference between 0.4 - 2.1
are considered to be:
A) ionic
B) covalent
C) polar covalent
D) nuclear
______ 8. Bonds between elements that have an electronegativity difference greater than 2.1
are considered to be:
A) ionic
B) covalent
C) polar covalent
D) nuclear
Part 2 12 Points Name the formulas below (SEE LAST PAGE OF TEST)
NaCl
_________________________________ NH 4 F ____________________________
NaNO3 _________________________________ KNO2 ___________________________
MgSO4 __________________________________ NaOH _______________________________
Part 3 20 Points (SEE LAST PAGE OF TEST)
ANSWER ANY 5 IN PART 3
Sodium Nitrite
___________________ Sodium Phosphate
____________________
Zinc Bromide
___________________ Zinc Sulfite
____________________
Aluminum Iodide
____________________ Iron (II) Sulfate
____________________
Ammonium Hydroxide ____________________ Ammonium Chloride _____________________
Part 4 30 Points
Write the formulas for the following covalent compounds.
1. Sulfur Dioxide
_____________
2. Nitrogen Monoxide
_____________
3. Sulfur Trioxide
____________
4. Phosphorus Trichloride _____________
5. Nitrogen Dioxide ____________
6. Dinitrogen Tetroxide
_____________
7. Oxygen Difluoride ____________
8. Carbon Disulfide
______________
9. Ammonia
____________
10. Silicon Dioxide
______________
Part 5 30 Points
Using the prefix nomenclature, name the following covalent compounds.
1. CO2
________________________
2. CO
___________________________
3. SO2 ________________________
4. PCl 5 ___________________________
5. N2O5 ________________________
6. N 2O3 ___________________________
7. N2O
________________________
8. CCl4 ___________________________
9. SCl6 ________________________
10. P2O5 ___________________________