If the ideal gas constant R = 0.08206 L∙atm/mol∙K, what number of moles of gas occupy a volume of 0.575 L at a pressure of 3.52 atm, and a temperature of 300 K?

it takes on an electronical energy

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.