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CGP GCSE Chem > Cracking - Splitting Up Long-Chain Hydrocarbons > Flashcards

Cracking - Splitting Up Long-Chain Hydrocarbons Flashcards

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1
Q

What are long hydrocarbons like?

A

Viscous (thick and gloopy)

High boiling points

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2
Q

What are shorter hydrocarbons like?

A

Thinner and paler

Lower boiling points

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3
Q

Which is in higher demand - short-chain hydrocarbons or long-chain hydrocarbons?

A

Short-chain hydrocarbons like octane, used in petrol

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4
Q

What is done to meet this demand for short-chain hydrocarbons?

A

Long-chain hydrocarbons are split into more useful short-chain molecules using cracking

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5
Q

What is cracking?

A

A form of thermal decomposition, which means breaking down molecules into simple molecules by heating them

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6
Q

What does cracking also produce?

A

Alkenes, which are used to make polymers

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7
Q

See diagram page 72

A

Ok

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CGP GCSE Chem (233 decks)

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