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11 Cards in this Set
- Front
- Back
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What metals won't need extracting and why?
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Silver
Gold Platinum They are so unreactive they won't form oxides |
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What elements are extracted by heating them with carbon in a blast furnace?
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Zinc
Iron Tin Lead Copper (Anything below carbon) |
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What metals are extracted by electrolysis?
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Potassium
Sodium Calcium Magnesium Aluminium (Anything above carbon) |
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What are ores?
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Naturally occurring rocks that contain enough metal to make it economical to extract it
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What is in air to make it useful in a blast furnace and why?
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Oxygen
Allows the coke to burn and so produces heat and carbon monoxide |
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What is in coke to make it useful in a blast furnace and why?
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Carbon
Burns in air to produce heat, reacts to form carbon monoxide |
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What is in iron ore (haematite) to make it useful in a blast furnace and why?
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Iron oxide
Compound containing enough iron to make it economic to extract |
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What is the symbol equation for iron being reduced by carbon?
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Fe₂O₃ + 3C → 2Fe + 3CO
Fe₂O₃ + 3CO → 2Fe + 3CO₂ |
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What is in limestone to make it useful in a blast furnace and why?
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Calcium Carbonate
Decomposes to form calcium oxide and helps to remove impurities like sand from the iron by reacting them to form molten slag |
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What are the properties of transition metals?
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Dense
Ductile (easy to draw into wire) Malleable (easily shaped) Good conductors of heat and electricity Form coloured compounds |
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Where are transition metals found on the periodic?
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In the middle
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