Calculate Solve each of the following: a. If 22.99 g of sodium and 35.45 g of chlorine fully react, how much sodium chloride forms?
b. A 12.2-g sample of X reacts with a sample of Y to form 78.9 g of XY. What mass of Y reacted?

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.

answermeridional ;