Which coefficient of o2 is needed to balance the equation c3h8 + o2 → 3co2 + 4h2o?

a.2
b.3
c.5
d.6

Hey my guy the answer is C. 5 I had the same question awhile back

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.