5.7.1.1 crude oil, hydrocarbons and alkanes Flashcards

1
Q

What is a crude oil

A

A finite resource found in rocks

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2
Q

Crude oil is the remains of..

A

ancient biomass, mainly plankton

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3
Q

What is crude oil a mixture of?

A

very large compounds, mostly hydrocarbons- molecules made up of hydrogen and carbon only.

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4
Q

What are alkanes?

A

any of the series of saturated hydrocarbons including methane, ethane, propane, butane and higher members.

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5
Q

Define saturated

A

containing the greatest possible number of hydrogen atoms, without carbon–carbon double or triple bonds.

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6
Q

Define unsaturated

A

having carbon–carbon double or triple bonds and therefore not containing the greatest possible number of hydrogen atoms.

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7
Q

What is the general formula for the homologous series of alkanes

A

CnH2n+2

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8
Q

List the first four members of alkanes

A

Methane, ethane, propane and butane

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9
Q

What are the two ways in which alkanes can be represented

A

CnH2n+2 or bond model

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10
Q

Define homologous

A

Carbon/hydrogen molecules which have the same relation to each other

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11
Q

Define heterogenous

A

Carbon/hydrogen atoms which have an unalike relation to each other

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