Using the table below to help predict your answer. Common Salt Solubilities
NO3- CrO42- ClO3- OH-
Na+ yes yes yes yes
K+ yes yes yes yes
Ca2+ yes no yes yes
Pb2+ yes no yes no

Which of the following salts is insoluble in water?

a) the particles of the chair are strongly held together.

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.

answerambulatory;