At least 4 sentences long. Talk about how the chemicals that had only non-metals in them allowed the sodium polyacrylate to remain solid. The chemicals that had both metals and non-metals changed the sodium polyacrylate to a liquid.

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.

Which change to the system wood cause the freely-moving piston to lower?

The volume of a single vanadium atom is 9.29×10-24 cm3. what is the volume of a vanadium atom in microliters?