A sample of an unknown metal has a mass of 6.557 g. The metal was carefully added to a graduated cylinder containing 10.50 mL of water. The water level in the graduated cylinder rose to 11.16 mL. What is the density of the unknown metal?

How hot is the suns corona? (integrated science)

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.

Helium decays to form lithium. which equation correctly describes this decay?