An experiment is carried out to determine the percentage composition by mass of sand and copper (II) sulphate in a mixture. A 10.0 g portion of the mixture is stirred in 200 cm3 of distilled water, until no further change takes place. The resulting mixture is filtered into a clean beaker using a funnel fitted with filter paper.

Iam not sure butch i thinnk it is ab

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