Answer:Since one mole of MgCl2 consists of one mole of magnesium and two moles of chlorine, the mass of one mole of MgCl2 must be the sum of the masses of the elements. The mass of one mole of a substance is called the molar mass or molecular weight.
Explanation:
Answer:
A. Light with greater photon flux is more likely to cause electrons to be emitted than the weaker light.
Explanation:
Doubling the intensity of photo flux will double the number of electrons ejected from the metal surface.However, the kinetic energy distribution will remain the same.The number of photo electrons emitted per second is directly proportional to photo current produced and to the intensity of photon flux of light.
Chlorine takes electrons from potassium in the reaction
....oxygen and sulfur this is cuz of the potential energy there in the same properties