What kind of forces act between molecules?
o
a. intramolecular forces
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b. covalent forces
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c. lonic forces
d. intermolecular forces
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explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

c (diamond),

sio2 (quartz)