Question

all of the following be great at lowering vapor pressure except a substance that is:
nonvolatile
does not undergo chemical reaction
slightly soluble
does not escape into the gaseous phase
9 true or false 1 point
the chemical nature of the solute is an important influence on vapor pressure lowering.
true
false

Explanation:

For the first question: Vapor pressure lowering depends on dissolving nonvolatile solutes that stay in solution (don't escape to gas, don't react). A slightly soluble substance dissolves very little, so it has almost no effect on lowering vapor pressure.
For the second question: Vapor pressure lowering is a colligative property, which depends only on the number of solute particles, not the chemical nature of the solute.

Answer:

1. slightly soluble
2. False