GCSE Chemistry 1-9: What is Catalytic Cracking? What are the three conditions needed for catalytic cracking? Catalytic cracking uses atemperature of approximately 550°Cand a catalyst known as a zeolite which contains aluminium oxide and silicon oxide. Steam cracking uses a higher temperature of ove...
Well, in Britain, from the ages of five to about eleven you start off at a primary school, and then from eleven to sixteen you go on to a secondary school or a comprehensive school and at sixteen you take GCSE examinations. After this, some children take vocational courses or even start...