Unit 2 Flashcards

1
Q

What is a hydrocarbon?

A

A compound made up of only hydrogen and carbon

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2
Q

What is a homologous series?

A

A family of hydrocarbons with similar chemical properties, that can be represented by a general formula.

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3
Q

What happens as the chain of carbons increase in length?

A

The longer the chain, the more intermolecular bonds form, resulting in higher boiling points and melting points but lower flammability.

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4
Q

What is the general formula of alkanes?

A

CnH2n+2

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5
Q

What is the general formula for alkanes?

A

CnH2n

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6
Q

What are alkanes used for?

A

To make polymers and alcohols

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7
Q

What are cycloalkanes used for?

A

They are used as solvents and fuels

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8
Q

What is the general formula for cycloalkanes?

A

Cn H2n

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9
Q

What does saturated mean?

A

Saturated hydrocarbons contain single carbon-carbon bonds only.

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10
Q

Which homologous series is the most reactive?

A

Alkenes, unlike alkanes and cycloalkanes are unsaturated (have double bonds), making them the most reactive.

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11
Q

What is an addition reaction?

A

The addition of a molecule over a double bond.

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12
Q

What is an isomer?

A

A compound that has the same molecular formula, but a different structural formula.

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13
Q

What are alcohols?

A

A family of compounds with a functional group (-OH)

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14
Q

What is the general formula of alcohols?

A

Cn H2n+ 1 OH

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15
Q

What happens when an alcohol molecule increases in size?

A

The melting and boiling point increases due the increasing strength of intermolecular bonds.

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16
Q

What is the functional group of the carboxylic acids?

A

(-COOH)

17
Q

What is an exothermic reaction?

A

A reaction that releases heat energy.

18
Q

What is an endothermic reaction?

A

A reaction that takes in heat energy.