Denver wonders if adding salt to water will make it boil at a lower temperature. what should he do next in order to follow the steps of inquiry?

Impurities decrease the boiling point of a liquid, hence the boiling point of the salt solution will be less than that of pure water.

Explanation:

If Denver wants to know if adding salt to water will reduce the boiling point of water, Denver needs to set up the apparatus for the inquiry as follows;

A boiling tube

A Bunsen burner with wire gauze

A thermometer

A test tube holder

The thermometer is placed inside the boiling tube while the salt solution his allowed to boil. The boiling point is observed using the thermometer. Impurities decrease the boiling point of a liquid, hence the boiling point of the salt solution will be less than that of pure water.