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Worksheets3.2 Intermolecular Forces & Coulomb's Law
Total questions: 10
Worksheet time: 11mins
What results when equal but opposite charges are present in two regions of a polar molecule?
dipole
ionic bond
electron sea
crystal lattice
The electrical force, F, between two point charges is directly related to the product of the charges and inversely related to the distance between them. What happens to an electrical force if the distance between two charges doubles while all other factors remain constant?
2F
4F
1/2 F
1/4 F
Of the three molecules O2, HCl, and F2, which one has the potential to be polar? Refer to the periodic table.
F2
O2
HCl
They all have the potential to be polar.
Which reason explains why the boiling point of water (H2O) is higher than the boiling point of hydrogen sulfide (H2S)?
ionic bonding
covalent bonding
hydrogen bonding
London dispersion forces
Which action is done by the slightly charged parts of a water molecule in a salt solution?
They attract nonpolar molecules.
They attract the ions in ionic compounds.
They form ionic bonds with other water molecules.
They form ionic bonds with ions in ionic compounds.
What can explain the mosquito standing on water without sinking?
Strong intermolecular hydrogen bonds that cause surface tension
the mosquito is overpowered and can do miracles
the water has a crystalline structure
water has a high boiling point
The unit of a +ve or -ve charge is
coulomb
volt
amper
watt
If the charge increases, what happens to the force?
increases
decreases
stays the same
can't be determained
What is the value of the constant k in coulombs law?
k = 20.4 × 10 9 N ⋅ m 2 /C 2
k = 8.99 × 10 9 N ⋅ m 2 /C 2
k = 8.99 × 10 9 N ⋅ C 2 /m 2
k = different every time
If the distance between the two charges increases the force in newtons:
decreases
increases
stays the same
can't be determined
