For science homework, a student was responsible for creating a model that accurately represented the law of conservation of matter. The model below depicts this student's attempt at creating the model by using the chemical reaction that creates water. Based on the evidence, write a scientific explanation that describes why the model pictured above does not follow the law of conservation of matter.

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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.