Understanding Emulsions

What is an emulsion?

• A homogeneous mixture of gases

• A mixture of two or more immiscible liquids

• A solution of solids in liquids

• A suspension of solids in gases

Which of the following best describes a colloid?

• A suspension with visible particles

• A homogeneous mixture with large particles

• A heterogeneous mixture with intermediate-sized particles

• A solution with dissolved gases

Why do oil and vinegar not mix in mayonnaise?

• Both are nonpolar substances

• Oil is polar and vinegar is nonpolar

• Both are polar substances

• Oil is nonpolar and vinegar is polar

What role does egg yolk play in mayonnaise?

• It acts as a flavor enhancer

• It serves as a thickening agent

• It functions as an emulsifying agent

• It provides color to the mixture

Which tool is suggested for making an emulsion?

• A rolling pin

• A blender

• A wire whisk

• A spatula