How many moles are present in 10.5 x 10^23 atoms of helium?

Which formula can be used to calculate the molar mass of hydrogen peroxide

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation