a substance dissolves in water by breaking up into smaller pieces. these pieces of the same
substance spread throughout the water. this process is known as

Binary fission and mitosis

In the conservation of mass, mass (which is the same as energy) can never be created or destroyed in the same way oil is formed from the remains of small animals and plants that died and fell to the bottom of the sea and their mass (energy) is conserved as oil.

C. hope this . : )