C3
OCR 21st Century Science Revision C3
2.5 / 5 based on 2 ratings
- Created by: zoe
- Created on: 17-05-13 17:14
Britain has a number of valuable _______ deposits in the ground...
Mineral
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Mineral deposits in the ground include...
Coal,Limestone,Salt
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5 examples of geological processes...
Mountain building, erosion, sedimentation, dissolving, evaporation
3 of 53
These make up the earths surface...
Tectonic plates
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The chemical name for salt is...
Sodium Chloride
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Salt can be obtained by pumping water into a deposit and extracting the...
Brine
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Salt waste can affect plants and animals by drying them up through the process...
Osmosis
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Four uses of alkalis...
Neutralising acidic soils, making chemicals to bond die to cloth, making soap from fats and oils, making glass
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Soluble hydroxides and soluble carbonates are alkalis therefore they...
Neutralise acids
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Four uses of alkalis...
Neutralising acidic soils, making chemicals to bond die to cloth, making soap from fats and oils, making glass
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Hydrochloric acid + Potassium hydroxide--->
Potassium chloride + Water
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Soluble hydroxides and soluble carbonates are alkalis therefore they...
Neutralise acids
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Hydrochloric acid + Calcium Carbonate--->
Calcium chloride + Water + Carbon Dioxide
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Hydrochloric acid + Potassium hydroxide--->
Potassium chloride + Water
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Hydrochloric acid + Calcium Carbonate--->
Calcium chloride + Water + Carbon Dioxide
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Hydrogen chloride can be oxidised to make...
Chlorine
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Chlorine, hydrogen, and sodium hydroxide are extracted from brine using...
Electrolysis
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Hydrogen chloride can be oxidised to make...
Chlorine
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Electrolysis occurs when...
An electric current is used to split up a liquid or dissolved compound (called the electrolyte)
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Chlorine, hydrogen, and sodium hydroxide are extracted from brine using...
Electrolysis
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Sodium hydroxide...
Is an important alkali, is used to make soaps, detergents, paper and textiles, is used as a domestic drain cleaner, is a corrosive substance
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Electrolysis occurs when...
An electric current is used to split up a liquid or dissolved compound (called the electrolyte)
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Hydrogen...
Is a flammable gas, is used in processing hydrocarbon fuels, making margarine and making ammonia in the Haber process, will be used as a clean fuel in the future
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Sodium hydroxide...
Is an important alkali, is used to make soaps, detergents, paper and textiles, is used as a domestic drain cleaner, is a corrosive substance
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Chlorine...
Can be used as a bleach, can be used to kill bacteria in drinking water-this has controlled many diseases in humans around the world, is a toxic gas
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Chlorine could react with organic chemicals in water to produce...
Small amounts of harmful chemicals
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Step 1 of the LCA...
Making the material from natural raw materials
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Hydrogen...
Is a flammable gas, is used in processing hydrocarbon fuels, making margarine and making ammonia in the Haber process, will be used as a clean fuel in the future
28 of 53
Step 2 of the LCA...
Manufacture
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Chlorine...
Can be used as a bleach, can be used to kill bacteria in drinking water-this has controlled many diseases in humans around the world, is a toxic gas
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Step 3 of the LCA...
Use
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Chlorine could react with organic chemicals in water to produce...
Small amounts of harmful chemicals
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Step 4 of the LCA...
Disposal
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Step 1 of the LCA...
Making the material from natural raw materials
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Step 2 of the LCA...
Manufacture
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The purpose of the LCA is to find the most _________ method possible...
Sustainable
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Step 3 of the LCA...
Use
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Factors to be assessed in making the material from natural raw materials...
Energy needed and environmental impact of converting raw materials into useful materials
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Step 4 of the LCA...
Disposal
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Factors to be assessed in manufacture...
Resources and enefy to make the products, the environmental impact of making the product from the material
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The purpose of the LCA is to find the most _________ method possible...
Sustainable
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Factors to be assessed in use...
Energy needed to use the product, energy and chemicals needed to maintain the product, environmental impact
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Factors to be assessed in making the material from natural raw materials...
Energy needed and environmental impact of converting raw materials into useful materials
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Factors to be assessed in disposal...
Energy needed to dispose of the product, environmental impact of landfill, incineration and recycling
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Factors to be assessed in manufacture...
Resources and enefy to make the products, the environmental impact of making the product from the material
45 of 53
Different materials can perform the..
Same job
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Factors to be assessed in use...
Energy needed to use the product, energy and chemicals needed to maintain the product, environmental impact
47 of 53
What does LCA stand for?
Life cycle asssesment
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A high salt intake in your diet increases...
the risk of you developing heart disease
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Factors to be assessed in disposal...
Energy needed to dispose of the product, environmental impact of landfill, incineration and recycling
50 of 53
Different materials can perform the..
Same job
51 of 53
What does LCA stand for?
Life cycle asssesment
52 of 53
A high salt intake in your diet increases...
the risk of you developing heart disease
53 of 53
Other cards in this set
Card 2
Front
Mineral deposits in the ground include...
Back
Coal,Limestone,Salt
Card 3
Front
5 examples of geological processes...
Back
Card 4
Front
These make up the earths surface...
Back
Card 5
Front
The chemical name for salt is...
Back
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