How many moles of oxygen would it takie to produce 8 moles of carbon dioxide?

12.5 moles of oxygen

Explanation:

Ok I would need to first have a balanced equation which has a reaction ratio to answer this. and the reaction ratio is 25 O2 = 16 CO2.  And the way you find how many moles are in oxygen is by putting 25 O^2/x= 16 CO2/8 mol . In other words multiply 25 by 8 and divide by 16 and you will get 12.5 moles of oxygen.

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