Reaction rates

Question 1

Reaction rates increase when the recant are more concentrated. This is because the molecules are more crowded and collide more frequently.

Answer 1

Concentration

Question 2

reaction rates increase. This is because heat causes molecules to move more rapidly and collide with greater force and frequency.

Answer 2

Temperature

Question 3

Theses are substances that temporarily bind to reactants, hold them in a favorable position to react with each other, and may change the shapes of reactants in ways that make them more likely to react.

Answer 3

Catalysts

biological catalyst are enzyme