Which two statements correctly describe transmutation? I A. The atomic masses of the parent and daughter elements are the
same.
B. The parent and daughter elements are different.
I C. The number of nucleons is conserved.
D. Neither the number of atoms nor the number of nucleons is
conserved.

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.