Chemistry- C10 Part B

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  • Created by: 13clarken
  • Created on: 29-05-18 17:26
... is where metals react with substances in their environment and are gradually destroyed
Corrosion
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Iron corrodes easily~ It ... To ... Iron needs to be in contact with both oxygen and water. ... is actually Hydrated Iron (III) Oxide. ... flakes off and it only happens on the surface
Rust
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... also corrodes in air- but not completely destroyed because ... oxide forms on the outside layer
Aluminium
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To prevent ... : Painting/Coating with plastic- Good for big structures. Electroplating- uses electrolysis and reduces metal ions. Oiling/ Greasing- Used with moving parts
Rusting
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... resources form without any human input- they include anything that comes from the sea, earth and air
Natural
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... resources reform at the same rate at which we use them up
Renewable
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... (non-renewable) resources can't reform quickly enough. They include fossil fuels and nuclear fuels (uranium and plutonium). Also includes minerals and metals found in ores
Finite
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... finite resources has risks. You have to balance the social, economic and environmental effects of ... E.g. Mining- Provides local jobs, money and useful products but is bad for the environment because is creates pollution, uses a lot of energy
Extracting
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... and adaptations have been made to use lower amounts of finite resources and reduce damage to the environment. E.g. Catalyst- uses less energy
Developments
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... is finite. Extracting low grade ores are new methods to use it
Copper
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Extraction of copper: ...- bacteria are used to convert copper compounds into soluble copper compounds and seperate copper from the ore in the process. The leachate (solution produced) contains copper ions which can be extracted
Bioleaching
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Extraction of copper: ...- Involves growing plants in soil containing copper. Plants can't use or get rid of the copper so it eventually builds up in the leaves. Burning the plants, leaves ash containing soluble copper compounds and copper get be got
Phytomining
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Other cards in this set

Card 2

Front

Iron corrodes easily~ It ... To ... Iron needs to be in contact with both oxygen and water. ... is actually Hydrated Iron (III) Oxide. ... flakes off and it only happens on the surface

Back

Rust

Card 3

Front

... also corrodes in air- but not completely destroyed because ... oxide forms on the outside layer

Back

Preview of the front of card 3

Card 4

Front

To prevent ... : Painting/Coating with plastic- Good for big structures. Electroplating- uses electrolysis and reduces metal ions. Oiling/ Greasing- Used with moving parts

Back

Preview of the front of card 4

Card 5

Front

... resources form without any human input- they include anything that comes from the sea, earth and air

Back

Preview of the front of card 5
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