Help with questions 9,10,11

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

How air particles exert a pressure on the inside of the balloon