Tion is 7.2 23.116 Carbohydrates are compounds containing carbon,
hydrogen, and oxygen in which the hydrogen to
oxygen ratio is 2:1. A certain carbohydrate contains
40.0 percent carbon by mass. Calculate the empiri-
cal and molecular formulas of the compound if the
approximate molar mass is 178 g.

the dependant variable is spilled water

the independent is the heat

catya your not at all which answer i've seen you do this on another question!

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.