How many moles of oxygen are in 0.60 moles of co 2 ? your answer should have the appropriate number of significant figures. only give the numeric value of your answer. don't include the units?

Answer is: number of moles of oxygen in 0,60 mol of carbon dioxide are 1,20.
n(CO₂) = 0,60 mol.
In one molecule of carbon dioxide, there are two atoms of oxygen, so make proportion:
n(CO₂) : n(O) = 1 : 2.
0,60 mol : n(O) = 1 : 2.
n(O) = 0,60 mol · 2.
n(O) = 1,20 mol.

Ithink that the answer is b