chem 5.0 / 5 based on 1 rating ? ChemistryElectrolysisGCSEAQA Created by: Lewys ThomsonCreated on: 08-06-15 17:10 Where is crude oil found? it is derived from an ancient biomas found in rocks.many useful materials can be made from crude oil. 1 of 15 What are biofuels made from? They are made from plant material. 2 of 15 How is bioethanol made? By sugar canes, wheat and other plants. 3 of 15 Is bioethanol a hydrocarbon? No, this is because it contains oxygen as well as hydrogen and carbon. 4 of 15 Can you name an environmental factor of using crude oils as fuels? if the oil is spilled when it is being extracted it can cause harm to the surrounding environent. 5 of 15 What is crude oil? It is a mixture of a very large number of compounds. 6 of 15 What is a mixture? A mixture consists of two or more elements or compounds that are not chemically bonded. 7 of 15 What are most of the compounds in crude oils made up of? Carbon and hydrogen atoms (Hydrocarbons). 8 of 15 What is the general formula for an Alcene? CnH2n. 9 of 15 What is the general formula for an Alcane? CnH2n+2. 10 of 15 What is the formula for Butane? C4H10. 11 of 15 What does a - mean in terms of bonding? A single bond 12 of 15 What does a = mean in terms of bonding? A double bond. 13 of 15 What does viscosity mean? The thickness of a mixture. 14 of 15 What solid is produced when crude oils are burned which contains carbon? Soot is made. 15 of 15
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