Apatient is advised to supplement her diet with 2g of calcium per day. the calcium tablets she purchase contain 500mg of calcium per tablet, how many tablet per day should the patient take?

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.