A student collected a 1.28 g sample of Magnesium. How many atoms of Mg are in his sample?

A student did an experiment that called for 1.24 x 1024 molecules of CaO. What is the mass of her reactant?

A student reacted 0.0405 g of glucose (C6H12O6). How many molecules of glucose did he react?

Respuesta :

All you haft to do is mutiply and see how many points there are