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WorksheetsAP Chemistry Thou Shalt
Total questions: 20
Worksheet time: 10mins
What type of alloy is made when the radii of the atoms are similar in size?
interstitial
substitutional
Which atom has the negative dipole in this molecule?
Hydrogen
Fluorine
Neither
In this molecule, Carbon has a formal charge of ____ and Nitrogen has a formal charge of _____.
0, 0
1, 0
0, -1
-1, 0
Combustion reactions produce what two substances?
Water Vapor and Carbon Dioxide
Carbon Dioxide and Oxygen
Oxygen and Water Vapor
As the electronegativity difference between 2 atoms increases, the polarity of the bond ____________________
increases
decreases
What type of bond forms between hydrogen and chlorine?
polar covalent
non-polar covalent
ionic
hydrogen bond
What type of alloy is this?
Interstitial
Substitutional
What is the total # of covalent bonds carbon can form when drawing a Lewis structure?
12
6
4
8
What is the bond angle in BF3?
90
120
109.5
180
What is the bond angle in H2O?
120
90
180
104.5
Are asymmetrical molecules polar or nonpolar?
Polar
non-polar
neither
What is the bond angle in NH3
120
107.3
180
90
What is the hybridization of carbon in CH4?
sp3
sp
sp2
What is the hybridization for carbon in CO2
sp3
sp
sp2
Count the number of sigma and pi bonds in this molecule:
13 sigma, 1 pi
14 sigma, 2 pi
1 sigma, 14 pi
2 sigma, 13 pi
Why are asymmetrical molecules polar?
Their dipoles do not cancel
Their dipoles cancel
What is the hybridization for an oxygen in CO2
sp3
sp
sp2
When a molecular solid melts or boils, which breaks?
Intermolecular forces
Intramolecular bonds
What is the total # of covalent bonds carbon has to make when drawing a Lewis structure?
12
6
4
8
