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In Course: GCSE Chemistry (AQA): Paper 2

AQA GCSE Chemistry: Hydrocarbons and Crude Oil

Covers the fundamentals of organic chemistry, including crude oil as a source of hydrocarbons, the process of fractional distillation, the properties of alkanes, and the process of cracking to produce more useful alkanes and alkenes.

A dramatic wide-angle photograph of a sprawling oil refinery at twilight, its intricate network of pipes and towers illuminated against a deep orange and purple sky. Wisps of steam and smoke rise into the atmosphere, creating a powerful sense of industrial scale and environmental impact.

Management & Tools

Deck Contents

30 Cards
Lesson#1
In this deck, we'll explore the world of organic chemistry, starting with crude oil. You'll learn what hydrocarbons are, how crude oil is separated into useful substances by fractional distillation, and how the properties of these substances are related to their size. We'll also cover a process called cracking, which is essential for meeting our demand for fuels like petrol.
Lesson#2
Crude oil is a fossil fuel, formed from the remains of ancient sea creatures over millions of years. It's a complex mixture of many different compounds. The vast majority of these compounds are hydrocarbons. As the name suggests, hydrocarbons are molecules made up of hydrogen and carbon atoms only.
Quiz#3
What is the definition of a hydrocarbon?

A compound of hydrogen and carbon only

Lesson#4
The hydrocarbons found in crude oil are mostly a family of compounds called alkanes. In an alkane molecule, all the carbon atoms are joined to each other by single bonds. Because they only have single bonds, we say they are 'saturated' hydrocarbons. You need to know the general formula for alkanes, which allows you to work out the chemical formula for any alkane if you know the number of carbon atoms.
Quiz#5
What is the term for a hydrocarbon containing only single carbon-carbon bonds?

Saturated

Quiz#6
What is the general formula for an alkane?

C n H 2n plus 2

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