How many moles of boron trifluoride are present in 2.40x10^22 molecules of this compound?

0.04 moles

Explanation:

If 1 mole = 6.02 × 10^23 molecules

; then...2.40 × 10^22 molecules we say,

; (2.40 × 10^22) ÷ (6.02 × 10^23)

; 0.039867109 moles

; 2.40 × 10^22 molecules = 0.04 moles

d.) circle motion requires a force to give it a centripetal acceleration.

i would say b

explanation:

but i think i would need more information than that