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all of the following require breaking and forming chemical bonds except
a. burning coal
b. roasting iron
c. evaporating water
d. tarnishing silver

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

Idon't know hope someone you

In any atom of any element, you will find protons and neutrons in the nucleus of any atom