Pre-Lab Questions: (3 points)

Question

1. According to Collision Theory, what three things must particles do to react?

2. How does decreasing the concentration of a substance affect its reaction rate?

3. How does decreasing the temperature of a substance affect the reaction rate?

Answer 1

1. According to Collision Theory, particles must collide, have sufficient energy, and have the correct orientation in order to react.

2. Decreasing the concentration of a substance generally decreases the reaction rate. This is because there are fewer particles available to collide and react with each other.

3. Decreasing the temperature of a substance generally decreases the reaction rate. This is because the particles have less kinetic energy and move more slowly, resulting in fewer collisions and a lower likelihood of successful reactions.