Question

1. *what property does distillation rely on to separate substances?

a. solubility
b. particle size
c. boiling point
d. density

1. **which technique would be best for collecting salt from a saltwater solution?

a. filtration
b. chromatography
c. evaporation
d. distillation

1. *what property is most important when using a separatory funnel to separate liquids?

a. solubility
b. boiling point
c. density
d. color

Explanation:

Question 2

Distillation is a process where a mixture is heated to vaporize the component with the lower boiling point, then condensed. So it relies on differences in boiling points. Solubility is for processes like extraction, particle size for filtration, and density for separatory funnel (not distillation).

To collect salt from saltwater, we can evaporate the water (a liquid) to leave the solid salt. Filtration is for solid - liquid mixtures with undissolved solids, chromatography for separating mixtures based on movement through a medium, and distillation is better for separating liquids or liquid - liquid mixtures, not for getting a solid from a salt - water solution.

A separatory funnel is used to separate immiscible liquids. The key property here is density because the liquid with higher density will be at the bottom and the one with lower density at the top, allowing us to drain the bottom layer. Solubility is about dissolving, boiling point for distillation, and color is not a property for separation here.

Answer:

C. Boiling point

Question 4