Science 2

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Elelctrolysis?
Turns ionic compounds back into atoms
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What is ore?
Rocks/dirt that contain a certain metal-some attached to oxygen and some to sulfides
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What is extraction?
The methods by which metals are taken out of the Earth's crust
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Oxidation?
The gain of oxygen
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Reduction?
The loss of oxygen
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Where do you find calcium carbonate?
Limestone
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What is the symbol for calcium carbonate?
CaCo3
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What is made when limestone is thermally decomposed?
Calcium Oxide
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CaCO3>CaO+CO2
Carbon dioxide is given off
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Iron and steel?
Steel is stronger than iron because of its atomic structure
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3 main types of steel?
Carbon, low allot steel, high alloy steel
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Carbon steel?
Used in cars, knives, buildings, machinery and it is the cheapest type of steel
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Low alloy steel?
More expensive as it contains 1% to 5% of other metals such as: nickel, titanium and tungster
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High alloy steel?
Contains even higher % of metals, used in cooking utensils and cutlery as it doesn't rust
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Viscous? Volatile? Hydrocarbon?
The thickness of a liquid, how well a liquid vaporises, made out of hydrogen and carbon
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Fossil foils?
Coal, oil, gas.
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Other cards in this set

Card 2

Front

What is ore?

Back

Rocks/dirt that contain a certain metal-some attached to oxygen and some to sulfides

Card 3

Front

What is extraction?

Back

Preview of the front of card 3

Card 4

Front

Oxidation?

Back

Preview of the front of card 4

Card 5

Front

Reduction?

Back

Preview of the front of card 5
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