If you have 245 grams of Li2CO3, how
many moles do you have?

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

ok whats the question if not i cannot you i need question and need a thing to answer

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.