London dispersion force and dipole dipole because both molecules are polar
CuCl2 + 2NaNO3 → Cu(NO3)2 + 2NaCl b)
Do you have a picture of the diagram? If it looks like the one I attached, the one pointing up is normal force, the one pointing down is gravity, the one pointing to the right is applied force and the one pointing left is friction. Hope that helps
Most terrestrial helium present today is created by the natural radioactive decay of heavy radioactive elements called Thorium and Uranium.