What happens when elements combine to form compounds?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.