Chemistry 0.0 / 5 ? ChemistryReactionsNational 5SQA Created by: Mia147Created on: 26-12-16 01:02 What are the four factors that affect the rate of a reaction? temperature , concentration , particle size , catalysts 1 of 5 What must happen for reactions to occur? The particles must colide 2 of 5 What are successful colisions? the collsions that cause a chemical reaction 3 of 5 What is collision theory? The greater the number of 'successful collisions the faster the reaction 4 of 5 what does increasing the temperature do to a reaction and why? increases ( speeds up) high temperatures gives 5 of 5
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