Consider the mg2+, cl-, k+, and se2- ions. the four spheres below represent these four ions, scaled according to ionic size. a) match each ion to its appropriate sphere. b) in terms of size, between which of the spheres would yo find the (i) ca2+ and (ii) s2- ions?

Ibelieve your answer is true 

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy