CHEMISTRY REVISION TOPIC 2 Chemistry of the Atmosphere

CHEMISTRY REVISION – TOPIC 2 – Chemistry of the Atmosphere Describe how scientists believe the atmosphere was formed during the first billions of years (link to what is WAS like and the reasons for this) Name the human activity that affects the greenhouse gases in the atmosphere and explain which gas is released: Climate change could have dangerous consequences on the Earth. Explain 2 examples. • 1) • Where did the oxygen come from and where did the carbon dioxide go from the early atmosphere? Oxygen: Carbon Dioxide: 2) • Describe the Greenhouse Effect? Make sure to include the greenhouse gases. KEY WORDS: • • • Greenhouse gas Carbon Dioxide Oxygen Decay Photosynthesis Sedimentary S T Q A

CHEMISTRY REVISION – TOPIC 2 – Chemistry of the Atmosphere What is meant by the term carbon footprint? What is meant by the term carbon neutral? Write both a word and balanced symbol equation to show what happens when each substance undergoes complete combustion. • What 2 problems do sulfur dioxide and nitrogen oxides cause in the air? H 2 What is meant by the term locked up carbon dioxide? • C 3 H 8 • C 4 H 10 O What is soot? And what problems does it cause? There are many ways in which we can reduce our carbon footprint. Name and give examples of ways this could be done. • • • What is the general equation for combustion? KEY WORDS: What is incomplete combustion? • • • Carbon Footprint Carbon Neutral Soot Hydrocarbons Pollution S T Q A