The new substances created, plus any resulting ash, water vapor, or carbon dioxide, are called because they are produced by the reaction.

Chemical change because a new substance is created, also because those examples are produced by chemical reactions.

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

answer; natural resources;