What are chemistry questions for high school students about atomic size trends?

How might this scientific phenomena be explained? a paper clip floats on water.

Which sentence from holes contains an implied personality trait? stanley and his parents had tried to pretend that he was just going away to camp for a while, just like rich kids do. he'd just been in the wrong place at the wrong time. stanley felt somewhat dazed as the guard unlocked his handcuffs and led him off the bus. stanley nodded to show he understood

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6