How much more NH4Cl needs to be added to have a saturated solution if the water is 45 C and there are already 35g of NH4Cl dissolved?

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space