Which excerpt from "Seventh Grade” shows a moment when Mr. Bueller acts in a way that is different from what Victor expects? Mr. Bueller said that if the students studied hard, at the end of the year they could go to France and be understood by the populace.
Mr. Bueller asked if anyone knew French. Victor raised his hand, wanting to impress Teresa. The teacher beamed and said, “Trés bien. Parlez-vous francais?”
Mr. Bueller looked at Victor, and Victor looked back. Oh please, don’t say anything, Victor pleaded with his eyes.
Mr. Bueller shuffled through the papers on his desk. He smiled and hummed as he sat down to work.

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.