Chemistry- Metals

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What is oxidation?
LOSS of electrons.
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What is reduction?
GAIN electrons.
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What is an ionic equation?
An equation that ignores anything that does not change in a reaction.
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Reduction with carbon:
LESS reactive metals (than carbon) are extracted from ores using carbon.
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Metals more reactive than carbon are extracted by:
electrolysis.
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What is phytomining?
Plants grow on copper ore, plants burned, copper extracted from ash.
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What is bioleaching?
Bacteria create a solution of copper ions, copper extracted from this.
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What does electrolysis do to copper?
Purifies it.
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What is a cathode?
- negative
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What is an anode?
+ positive
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Why can metals conduct electricity?
Have a delocalised electrons which carry a charge.
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Why are alloys stronger?
Different sized atoms means that layers cannot slide over each other.
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Properties of transition metals?
High melting point, colored compounds, strong.
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Other cards in this set

Card 2

Front

GAIN electrons.

Back

What is reduction?

Card 3

Front

An equation that ignores anything that does not change in a reaction.

Back

Preview of the back of card 3

Card 4

Front

LESS reactive metals (than carbon) are extracted from ores using carbon.

Back

Preview of the back of card 4

Card 5

Front

electrolysis.

Back

Preview of the back of card 5
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