Chemistry

hilaryboadi
Mind Map by hilaryboadi, updated more than 1 year ago
hilaryboadi
Created by hilaryboadi almost 5 years ago
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Mind Map on Chemistry, created by hilaryboadi on 04/13/2015.

Resource summary

Chemistry
1 Three rock types
1.1 Sedimentary
1.1.1 Layers of sediments, grains stuck together
1.1.2 Example: Sandstone
1.2 Igneous
1.2.1 Magma cooling down
1.2.2 Example: Granite
1.3 Metamorphic
1.3.1 Sedimentary rock compressed
1.3.2 Example: Marble
2 Limestone
2.1 Quarrying Limestone
2.1.1 For:
2.1.1.1 - a quarry provides jobs for local people
2.1.1.1.1 - an important material used for buildings
2.1.1.1.1.1 - limestone is exported to other countries, important for the UK economy
2.1.2 Against:
2.1.2.1 - noisy machinery, disturbs local residents and wildlife
2.1.2.1.1 - transporting limestone away from a quarry causes pollution
2.1.2.1.1.1 - unavailable space for other uses e.g. farming
3 Electrolysis of water
3.1 Hydrogen - squeaky pop
3.2 Oxygen - re-lights a splint
3.3 Carbon Dioxide - milky solution > limewater
3.4 Chlorine - litmus paper
4 Neutralisation
4.1 acid+alkali -> salt+water
4.2 A neutralisation reaction is where an acid reacts with the base (alkali) to produce a neutral solution of a salt and water.
5 Atmosphere
5.1 The changing atmosphere
5.1.1 Carbon dioxide - dissolved into oceans
5.1.1.1 Plants - photosynthesised
5.1.1.1.1 Animals - breathed in oxygen
5.1.1.1.1.1 water vapour - condensed and formed oceans
5.2 The early atmosphere
5.2.1 Volcanoes released:
5.2.1.1 - carbon dioxide
5.2.1.1.1 - water vapour
5.2.1.1.1.1 - small amounts of methane and ammonia
5.2.1.1.1.1.1 And there was NO oxygen
5.3 Present atmosphere
5.3.1 Nitrogen - 78%
5.3.2 Oxygen 21%
5.3.3 Argon - 0.9%
5.3.4 Carbon Dioxide - 0.04%
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