Final answer:
An example of a sol is egg white meringue on a pie, as it has air dispersed in a liquid. The other given food items are either heterogeneous mixtures or do not fit the definition of a sol.
Step-by-step explanation:
A sol is a type of colloid where solid particles are dispersed in a liquid. When looking at the options provided, neither balsamic vinaigrette, turkey gravy, nor flan would be classified as a sol. Balsamic vinaigrette is a heterogeneous mixture, turkey gravy can often have particles big enough to be a heterogeneous mixture, and flan is a custardy dessert that solidifies and thus, does not fit the criteria. However, egg white meringue on a pie is an example of a sol because it’s a stable foam, which has air dispersed in a liquid (the protein from the egg white), making a colloidal dispersion. In terms of the exercise tasks:
- a. White wine is a homogeneous mixture (solution).
- b. Mercury is an element.
- c. Ranch-style salad dressing is typically a heterogeneous mixture.
- d. Table sugar (sucrose) is a compound.
As for the pancake batter with chocolate chips, this describes another heterogeneous mixture; the chocolate chips acting as a solute that doesn't stay evenly distributed.