Reactivity series Flashcards

1
Q

What is the reactivity series?

A

A list of elements ordered by their reactivity

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2
Q

How can metals be placed in order of their reactivity?

A

Add the metals to water or acid and see which ones react the most (by how much fizzing there is)

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3
Q

What is the name for a reaction where oxygen is removed from a compound?

A

Reduction

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4
Q

Explain why zinc can be extracted from zinc oxide with carbon but magnesium cannot be extracted from magnesium oxide with carbon

A

Magnesium is more reactive than carbon (1), Zinc is less reactive than carbon (1), Carbon can therefore remove oxygen from zinc oxide but not magnesium oxide (1)

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5
Q

Explain why gold and silver can be found naturally in the Earth’s crust

A

It is very unreactive

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6
Q

What process is used to extract metals more reactive than carbon

A

Electrolysis

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7
Q

Define an ore

A

A material containing enough metal in it for it to be economically worthwhile to extract the metal.

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8
Q

Define a displacement reaction

A

A reaction in which a more reactive element takes the place of a less reactive element in one of its compounds or in solution

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9
Q

Define oxidation in the context of loss and gain of electrons

A

Oxidation is the loss of electrons

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10
Q

Define reduction in the context of loss and gain of electrons

A

Reduction is the gain of electrons

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11
Q

Which of the substances below has been oxidized and which has been reduced? Al3+ + Fe gives Fe3+ + Al

A

Aluminium has been reduced and iron has been oxidised

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