does the following atomic model of a chemical reaction correctly demonstrate the law conservation of matter why or why not plz help

The answer is 323 g.

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

As cooking food that has to go in the oven

Answer two atoms of oxygen;