What are three ways the rate of a chemical reaction can be changed

The temperature - warmer debris circulate swifter and collide greater oftentimes with greater ability.

2. The rigidity - debris in gases squeezed at the same time will collide greater oftentimes.

3. concentration of any reactants in answer.

4. floor section of any good reactants (powders have a larger entire floor section)

5. The presence of a catalyst. (catalysts decrease the activation ability)

Explanation:

C. i. potential, ii. kinetic, iii. potential and kinetic

Explanation: Potential energy is the energy that is possessed or exhibited by an object or a body that is static or stable. THE FORMULA FOR POTENTIAL ENERGY IS P.E = MASS OF AN OBJECT* HEIGHT * FORCE OF GRAVITY

Kinetic energy is the energy of an object or a body that is in motion or it is moving from one point to another.

THE FORMULAR FOR KINETIC ENERGY IS 1/2*MASS OF AN OBJECT *VELOCITY OF THE OBJECT SQUARE.