2.A student reacts 6.9 g of lithium chloride and enough copper (I) nitrate. Calculate the mass of precipitate expected.

When you know the number of moles that you expect, you will multiply by the molar mass of the product to find the theoretical yield in grams. example, the molar mass of CO2 is about 44 g/mol. (Carbon's molar mass is ~12 g/mol and oxygen's is ~16 g/mol, so the total is 12 + 16 + 16 = 44.)Explanation:

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.