A 1.60 g sample of KClO3 is heated to produce oxygen gas and potassium chloride. What volume of O2 collects over water at 26oC and 740 mmHg? 2 KClO3 > 3 O2 + 2 KCl

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.