C1 Air Quality 0.0 / 5 ? ChemistryAir QualityGCSEOCR Created by: Stella ThurlowCreated on: 25-04-17 21:20 What gases make up the air and what are there percentages in the atmosphere? Nitrogen=78% Oxygen=21% Argon=1% 1 of 21 What was the first atmosphere of the earth like? It was mainly moltan on the surface so any atmosphere would boil away 2 of 21 How did the first plants change the atmosphere if the earth? The green plants took in alot of oxygen so removed alot the ealry organisms could servive in these conditions so more complex organisms were created 3 of 21 What is the formula for carbon monoxide?Why is it harmfull? CO -Its poisonous and can even kill you 4 of 21 What is the formula for sulfar dioxide?Why is it harmful? SO2 -Gets into the atmosphere and stays there till removed it is released as acid rain which kills trees and animals and contaminates lakes e.t.c 5 of 21 What is a Hydrocarbon? Is a chain like molecule created from Hydrogen and Oxygen 6 of 21 What is made by the complete combustion of hydrocarbons? Carbon Dioxide 7 of 21 What does oxidation mean? When oxygen is added to a molecule 8 of 21 What happens in a catalytic converter? They convert nitrogen monoxide to nitrogen and oxygen, and add oxygen to carbon monoxide 9 of 21 How is sulphur dioxide removed from the flue gasses burned in power stations? WET SCRUBBING- this is when an alkali is reacted with it either:seawater or A alkali slurry 10 of 21 What main element that make up coal? Carbon 11 of 21 When a hydrocarbon burns what substance does the Hydrogen and Carbon atoms bind with Oxygen 12 of 21 What removes CO2 from the atmosphere? reducong fossil fuels burned 13 of 21 What atoms make up carbon monoxide? carbon and oxygen 14 of 21 Under what conditions is carbon monoxide produced? limited oxygen 15 of 21 What are particles of carbon otherwise know as? What kind of damage do they cause? They stay in the atmosphere and drift around until they fal back to the ground were they stay as a soot 16 of 21 How is the pollutant sulphur dioxide produced? Sulphur is a impurity in the fossil fuel that reacts with the oxygen in the the air when burned 17 of 21 How does sulphur dioxide leave the atmosphere? Acid Rain 18 of 21 How us Nitrogen Dioxide produced when fossil fuels are burned? The nitrogen in the air combines with the oxygen in the air to produce nitrogen monoxide that carries on reacting with oxygen to produce the dioxide 19 of 21 What does nitrogen oxides have an affect on the enviroment? Nitric Acid rain 20 of 21 How do MOT's help reduce pollution? By creating limits on the amount of pollution a car can emitt 21 of 21
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