Question

¿How does temperature affect chemical change?

Answer 1

Increasing the temperature will cause chemical changes to occur faster. Decreasing the temperature, causes the particles to lose energy which causes them to move around less and slower. The less they move, the less collisions occur, and the less reactions occur between the chemicals = slower reaction rate.

Answer 2

Chemical Change: A chemical change is a reaction that transforms (changes) a substance into a new substance or substances with different properties.

Physical Change: No new substances are made. It is fairly easy to reverse this kind of change. An example would be dissolving salt in water. The change can be reversed simply by evaporating the water.

How does a physical change differ from a chemical change?

A physical change is different than a chemical change, because in a physical change, the composition of the matter did not change. While in a chemical change, the composition of the matter did change.: