REFERENCEGENERAL CHEMISTRY FOR ENGINEERING AND SCIENCE II CHE 152-50Factors Influencing the Rate of Reactions pages 1-10OBJECTIVESExamine the factors that cause the rate of chemical reactions to vary. QUESTIONThe question that was proposed for the investigation was: do all factors modify the speed in the same way? Basic Discussion For this experiment you need to have a basic understanding of collision theory to understand what is happening in the experiment. Collision theory is a model of chemical reactions in which a reaction occurs after a collision containing enough energy occurs between two reacting molecules. This model has five factors that can be influenced and they are the nature of the reactants, temperature, concentrations, surface area and catalyst. If one of these were changed, the reaction could occur faster or slower depending on what was changed. Example calculations Speed ​​law: 2A + B→C, is speed=k[A][B](Laboratory guide page 6)PROCEDURE(Annex )DATA/CALCULATION TABLES (attached)RESULTSHYPOTHESESAll factors modify the speed equally reaction.OBSERVATIONSIn this experiment there are five different phases and in each a different factor of the collision theory was tested. The first phase was called Nature of the Reagents and consisted of three parts. In the first part, i.e. steps 1-4, 5 pieces of mossy zinc were placed in 3ml of 2M H_2 〖SO〗_4 and bubbles were produced during this time. After a few minutes the zinc was removed by the acid and it was now clean zinc. In the second part of step 1, i.e. steps 5-8, 4 different pieces of clean zinc were placed in 4 different acids. The acids were hydrochloric… half the paper… and they will get even faster. In the first step, Nature of Reagents, five different metals were placed in 2M HCl and they all reacted differently, with magnesium being the most reactive and copper the least reactive. In phase two, Concentration, the zinc was placed in different concentrations of 6M HCl. The higher the concentration, the more reactive the metal. Next in step three, Temperature, zinc was added to 6M HCl which was at different temperatures and the zinc was the most reactive with the HCl in the boiling water and the least reactive with the HCl in the ice bath. So in step four, Surface Area, the enhanced zinc was more reactive than the zinc chunk in 6M HCl because it had more surface area to cover than the zinc chunk. Finally in step 5, Catalyst, the 3% H_2 O_2 was reactive with the 5 drops of 〖FeCl〗_3 but not with the 5 drops of water.