C8 Reactions of metals Flashcards

1
Q

What does reactivity mean?

A

how vigorously a substance chemically reacts

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2
Q

In terms of electrons, what makes some metals more reactive than others?

A

they lose their outermost electron more easily

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3
Q

Why are gold and silver found naturally in the earth’s crust?

A

as they are unreactive
‘native metals’

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4
Q

What is an ore?

A

rock containing enough metal compound to be economically worth extracting

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5
Q

How are metals less reactive than carbon extracted from their ores?

A

reduction with carbon

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6
Q

What ore does aluminium come from?

A

Bauxite

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7
Q

How are metals more reactive than carbon extracted from their ores?

A

Electrolysis`

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8
Q

What is an ionic equation?

A

equation which gives some substances as ions and has spectator ions removed

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9
Q

What is a spectator ion?

A

Ion that is unchanged in a reaction

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10
Q

What is oxidiation?

A

loss of electrons

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11
Q

What is reductions?

A

gain of electrons`

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12
Q

What would we observe in a reaction of potassium with oxygen?

A

It would melt

Lilac flame
White solid produced
(Potassium oxide)

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13
Q

What type of ions do metals form?

A

Positive ions

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