What do I have to do in this worksheet it’s about balancing chemical equations

Tough one! Chemistry is probably the most tough year of high school. I would watch this video on balancing equations.

Explanation:

https://www.khanacademy.org/science/ap-chemistry/stoichiometry-and-molecular-composition-ap/balancing-chemical-equations-ap/v/balancing-chemical-equations-introduction

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.

answer7,570,82356 cubic centimeters;