Volume (mL)
300
250
200
150
100
50
Pressure
(kPa)
20
24
30
40
60
Pressure (kPa)
60
40
120
20
0

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

answer: mole of the gas

answer: mole of the gasexplanation:

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