Using a solution of 0.1 M of a certain cation form a precipitate with 0.1 M solutions of all of these anions; CO32-, OH-,SO42-. now determine which cation A)Ba2+, B)Fe2+, C )Mg2+ or D)Pb2+ fits this description out of these four given cations ?
If a soccer ball is traveling at a speed of 120 m/s then What is the kinetic energy of this soccer baal ? Mass of soccer ball is= 0.38 kg ?