Answer:
Ok:
Explanation:
So grams = mols*MolarMass. Here, MolarMass (MM) = 105.99g which can be found using the periodic table. mols is given to be 0.802. We can then plug in to get that it corresponds to 85.0g.
The third answer because there are two of each atom
1,2-methylcyclohexane, 1,3-methylcyclohexane, 1,4-methylcyclohexane