Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature? Dry ice undergoes sublimation, an endothermic change, at room temperature. Dry ice undergoes deposition, an endothermic change, at room temperature. Dry ice undergoes sublimation, an exothermic change, at room temperature.

The correct answer is b

The answer is c. 320 g

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more

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