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2) Mercury metal is poured into a graduated cylinder that holds exactly 22.5
mL. The mercury used to fill the cylinder weighs 306.0 g.
From this
information, calculate the density of mercury.

13.6g/mL

Explanation:

d = m / v

d = 306.0g/22.5ml

d = 13.6 g/mL

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.