
Answer:
B) Multiply 3 by Avogadro's number
Explanation:
This is according to Study.com
3 moles of fluorine contains 18.066✖10²³ Particles. thus, option B is correct
One mole contains 6.022✖10²³ particles.
3 moles of flourine contains 3✖6.022✖10²³ particles
Hence, option “B” is correct
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