Which is an instance of van der Waals forces operating in nature?
A) Plants germinating from seeds
B) Salt dissolving in water
C) Oil separating from water
D) Mammalian hearts pumping blood
E) Houseflies walking on walls and ceilings
Correct Answer:
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Q158: In the periodic table, why are hydrogen,
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A) A single covalent
Q161: The opposite of hydrophobic is
A) hydrophilic.
B) hygroscopic.
C)
Q162: The figures below have all been used
Q164: Refer to the figure below. 
Q165: Refer to the figure below. 
Q166: Which statement is false?
A) Covalent bonds can
Q167: Which experimental procedure could be used to
Q168: Refer to the figure below. 
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