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Chemistry > Chemical changes > Flashcards

Chemical changes Flashcards

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1
Q

Why are carbon and hydrogen included in the reactivity series?

A

these elements can be used to extract metals

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2
Q

How is a metal below carbon extracted?

A

extracted by reduction with carbon.

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3
Q

What is reduction?

A

Reduction means to reduce or lose oxygen. In a chemical reaction if a molecule looses oxygen or gain one or more electron it is referred to as reduction

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4
Q

Which metals can be extracted by carbon?

A

Zinc
Iron
Tin
Lead

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5
Q

How is a metal above carbon extracted?

A

Metals more reactive than carbon, such as aluminium, are extracted by electrolysis

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6
Q

What is electrolysis?

A

Electrolysis involves using electricity to break down electrolytes to form elements.

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7
Q

Which metals can be extracted by electrolysis?

A

Potassium
Sodium
Calcium
Magnesium
Aluminium

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8
Q

Which metals can be extracted by electrolysis?

A

Potassium
Sodium
Calcium
Magnesium
Aluminium

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Chemistry (4 decks)

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