Answer: 16 g of
reacted with the magnesium
Explanation:
from the equation of reaction: 2Mg +
→
48g of Mg requires 32g of O2 to yield 80g of MgO
That is :
48 : 32 : 80
Hence 12 : x: 32
xg of O2 =
= 16 g of 
Therefore:
16 g of
reacted with the magnesium
C14H30 because of the formula for alkanes:
CnC2n+2
Two moles because one moles would be 6.02×10 23 atoms 2 moles would equal twice that number of atoms