All atoms that can enter into chemical reactions do so to either share, gain or lose electrons to achieve a stable state.
true
false

pop pop pop on a opp

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

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.