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.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).