How much chalcopyrite had be mined to produce 100 pennies if each reaction involving copper proceeded in 63.00 % yield?

Do u have the n? or maybe the m?

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

Polymerization reaction

The answer to this question is a