Apiece of fe(s) at 25°c is placed into h2o(l) at 75°c in an insulated container. a
student predicts that when thermal equilibrium is reached, the fe atoms, being more
massive than the h2o molecules, will have a higher average kinetic energy than the
h2o molecules. which of the following best explains why the student's prediction is
incorrect?

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.