Rhodium is a metal with a face-centered cubic unit cell. It has an atomic radius of 134 pm. What is the density of rhodium metal? a) 0.337 g/cm3.b) 12.4 g/cm3.c) 278 g/cm3.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese

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.