What are four ways that a reaction can be slowed down?

Question

What are four ways that a reaction can be slowed down?

Answer 1

I agree with above but you can also remove the substrate.

Answer 2

temperature

concentration

inhibitors

Answer 3

Lower the temperature.

Add water (diluting everything)

Change pH.

Add inhibitor.

Answer 4

Lower the temperature.

Dilute the reagents (decrease the pressure for gases).

Decrease the available surface area where the reaction can occur.

Remove a catalyst.

Answer 5

pH, temp (either acidic/basic), conc, inhibition (competitive).