Five factors that affect the rate of reaction are concentration of the acid, temperature, pressure, catalyst and particle size (surface area).

In this experiment it will be the temperature of the hydrochloric acid and the surface area of the calcium carbonate.

I will be keeping all factors constant except for one variable which will be th temperature during each experiment.

I predict that the rate of reaction will increase proportionally with the temperature. Which can be explained by the collision theory, which is that the rate of reaction simply depends on how hard or soft the reacting particles collide with each other.

The basic idea is that particles have to collide in order to react, and they have to collide hard enough as well.

I have drawn a graph to illustrate my prediction:

To keep it a fair test, the variables need to be kept the same to prevent getting the wrong results. The temper

• Then I will fill a basin half full of water

• I will then measure the amount gas produced by the calcium carbonate chips, it will be produced and collected in a measuring cylinder which is filled with water, as the gas is produced the amount of water decreases I will measure the amount decreased in cm3 I will take readings every minute

Some topics in this essay:
Fair Testing, Plan Calcium, Safety Procedures, rate reaction, hydrochloric acid, calcium carbonate, • measure, marble chips, larger surface, acid react, fair testing, fair test, size marble chips, acid accurate correct, correct rates reacting, temperature acid accurate, correct rates, accurate correct rates,