In the reaction, 2na (s) + 2h2o (l) → 2naoh (aq) + h2 (g), which of the reactants or products is in the gas phase?

na

h2o

naoh

h2

Clearly H2 is in gaseous state as could be seen from (g) written with it which tells state of the product

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