Once water is frozen into an ice cube ,is the mass the same as it was before

What is the mass of sodium in 3 moles of sodium chloride

Building glycogen from glucose molecules is an example of

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.