If 36g of Al react with 34L of Oz, how many moles of Al2O3 are produced? 4Al +302 --> 2Al2O3

145 moles
0.667 moles
0.165 moles
101 moles

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.