I would greatly appreciate your help with questions 9 through 12 of a physics lab. Thank you.

Q9: What sign of charge do raindrops almost always have? Q10: Give one example from the article. of a problem that could arise from the trihoelectrification of water. IC111: lGiven water's mass of 18g/mole and the value of the fundamental charge (charge magnitude of the electron and proton). use the largest charge density from the article to determine what fraction of water molecules became ionized [charged] due to triboelectric effects when it flows through the material that causes the largest charge transfer. Give your answer in e/molecule. or' electrons transferred per molecule of water. Fo r instance. a value of 0.2 means only one in five molecules of water loses an electron. or that 0.222056 of water molecules become charged. By the way. the answer is nowhere near that large'. Q12: A raindrop has a mass of 0.05g. How many electrons would a raindropsized volume of water lose after flowing through the material from the last