Lance armstrong can ride his bicycle at speeds of 15m/s. if he is traveling at this speed, how long will it take him to travel 81.9 mmeters?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?

If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution