Shampoo Chemistry
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Questions and Answers

What is the primary purpose of shampoo?

  • To add fragrance to hair
  • To remove dirt, oil, perspiration, and skin debris from hair and scalp (correct)
  • To color the hair
  • To create a protective layer on the hair shaft

What is a solute?

  • A substance that dissolves another substance
  • A substance that is dissolved in a solvent to form a solution (correct)
  • A substance that acts as a bridge to allow oil and water to mix
  • A formulation in which solid particles are distributed throughout a liquid medium

Which type of shampoo is designed to not strip natural oils from the hair?

  • Therapeutic medicated shampoo
  • Sulfate-free shampoo (correct)
  • Clarifying shampoo
  • Volumizing shampoo

What is the function of a surfactant in a shampoo?

<p>To reduce surface tension and allow oil and water to mix (D)</p> Signup and view all the answers

What distinguishes suspensions from solutions?

<p>Suspensions involve solid particles distributed in a liquid (C)</p> Signup and view all the answers

What do therapeutic medicated shampoos primarily contain?

<p>Special chemicals or drugs to reduce excess dandruff (D)</p> Signup and view all the answers

What is a solution in the context of chemistry?

<p>A stable uniform mixture of two or more mixable substances made by dissolving one substance in another (B)</p> Signup and view all the answers

What is the primary function of a solvent in a solution?

<p>To dissolve another substance to form a solution (D)</p> Signup and view all the answers

What type of conditioner is designed to restore moisture and protein to the hair?

<p>Deep, penetrating conditioner (A)</p> Signup and view all the answers

What is the primary function of a surfactant in a mixture of oil and water?

<p>To act as a bridge and allow oil and water to mix (C)</p> Signup and view all the answers

What term is used to describe a mixture of two or more substances that are not uniformly mixed?

<p>Suspension (A)</p> Signup and view all the answers

Study Notes

Shampoo

  • Removes dirt, oil, perspiration, and skin debris from the hair and scalp

Solution Chemistry

  • A solution is a stable, uniform mixture of two or more mixable substances
  • Formed by dissolving a solid, liquid, or gaseous substance in another substance
  • Solvent is a substance, usually a liquid, that dissolves the solute to form a solution
  • Water is a common solvent

Surfactants

  • Substances that act as a bridge to allow oil and water to mix or emulsify
  • Reduce surface tension to mix oil and water

Shampoo Formulations

  • Suspensions are formulations in which solid particles are distributed throughout a liquid medium
  • Sulfate-Free Shampoos are formulated with little to no sulfates to preserve natural oils in hair
  • Therapeutic Medicated Shampoos contain special chemicals or drugs to reduce excessive dandruff
  • Treatment or Repair Conditioners are deep, penetrating formulations that restore moisture and protein in the hair

Solution

  • A stable uniform mixture of two or more mixable substances
  • Formed by dissolving a solid, liquid, or gaseous substance in another substance

Solvent

  • A substance, usually a liquid, that dissolves the solute to form a solution
  • Plays a crucial role in creating a solution

Surfactant

  • A substance that enables oil and water to mix or emulsify
  • Reduces surface tension to facilitate mixing of oil and water

Treatment or Repair Conditioners

  • Deep, penetrating formulations that help restore moisture and protein in the hair
  • Designed to repair and nourish damaged hair

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Description

Learn about the chemistry behind shampoos, including the role of solutes, solvents, and solutions. Discover the differences between regular and sulfate-free shampoos.

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