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WorksheetsUnit 2 Part 3 Notes 5: Polarity
Total questions: 20
Worksheet time: 16mins
The electrons in a polar covalent molecule are shared...
equally
unequally
electrons are not shared
none of the Above
The electrons in a nonpolar covalent molecule are shared...
equally
unequally
electrons are not shared
none of the Above
In a polar covalent bond, the electrons gather around...
The atom with the greatest electronegativity
The atom with the lowest electronegativity
each atom equally
none of the Above
The polarity of a bond is determined by...
The sum of the electronegativities of the two atoms
The difference in the electronegativities of the two atoms
The charges of the atoms
None of the Above
Partial charges are present in which type of bond?
Ionic
Nonpolar Covalent
Polar Covalent
Both Polar Covalent and Ionic
What must the difference in electronegativity between two atoms be in order for the bond between them to be polar covalent?
less than 0.4
greater than 1.8
between 0.4 and 1.8
exactly 0
When you have H-Cl, what is the polarity?
nonpolar
polar
ionic
A diatomic molecule like O2 is always_______ because electrons are shared ________.
The electronegativity difference in the bonds of CH4 (methane) is:
0.4
5.9
1.2
1.7
Is this molecule polar or non-polar?
Polar
Non-polar
Is this molecule polar or non-polar? (H2O)
Polar
Non-polar
True or False
Attractions between polar molecules are weaker than attractions between nonpolar molecules.
True
False
Phosphorous trichloride has the formula of:
Which shapes of molecules are ALWAYS polar? (Check all that apply).
trigonal planar
trigonal pyramidal
bent
linear
tetrahedral
