CuO+H=Cu+H2O from the equation indicate oxidation, reduction, oxidizing agent and reducing agent

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Word equation for k+ h2o yield koh + h2

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.