Chemistry 0.0 / 5 ? ChemistryThe earth and its atmosphereThe pollutants of combustionGCSEAll boards Created by: LucyMorganCreated on: 24-04-14 22:14 How much of the atmosphere contains nitrogen 78% 1 of 20 How much of the atmosphere contains oxygen 21% 2 of 20 Why doesn't a can crush when all the drink is finished It is not true empty space (still contains gases including nitrogen and oxygen) 3 of 20 What does sulphur dioxide and nitrogen dioxide produce Acid rain 4 of 20 What are the affects of acid rain Damages buildings, plants and trees. Breathing problems and causes asthma to worsen 5 of 20 What are the dangers of particulates The make surfaces dirty. Can cause lung infections and makes asthma worse 6 of 20 What is the word equation for combustion Methane + oxygen = carbon dioxide + water 7 of 20 What is the word equation for incomplete combustion Methane + oxygen = carbon + water 8 of 20 Name the three parts to a fire triangle Source of heat, oxygen and fuel 9 of 20 Where do all the atoms go during combustion They are realised into the atmosphere 10 of 20 What does reduced mean Oxygen is removed 11 of 20 What does oxidised mean Oxygen is added 12 of 20 Why are these reactions good (oxidised and reduced) The pollutants are changed into gases that naturally occur in our atmosphere 13 of 20 What is the piece of equipment that does this reaction Catalytic converter 14 of 20 Where is the wet scrubbing method used and why In power stations to rid of waste gases 15 of 20 What does it do It converts waste gases into calcium sulphate using lime and water 16 of 20 Why does this work Sulphur dioxide is an acid gas so the lime neutralises it 17 of 20 Another method? Electrostatic precipitation 18 of 20 Name two fuels that have sulphur removed from them before they are burnt Oil and gas 19 of 20 Three ways of lowering pollution Catalytic converter, public transport, aerodynamic cars, 20 of 20
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