Me asa 4 fe(s) + 3o2(g) --> 2fe2o3(g) in a certain reaction, 27.3 g of iron is reacted with 79.9 g of oxygen how many grams of the excess reactant remain after the reaction is complete?

Why do cells appear different in distilled water than they do in 10% salt water?

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave

Select the correct answer. wax is a nonpolar substance. in which type of substance is it most soluble?