How many moles can be made from 9.73x10^16 atoms of na?

How do scientists think that gravity affected the formation of our solar system?

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

Which is not true regarding reaction rates? (2 points) catalysts are not used up in the reaction. catalysts speed up reactions by lowering the activation energy. reaction rates decrease as the concentration of reactants decrease. during reactions, concentrations of all reactants decrease at the same rate.