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Basic Chemistry — Cosmetology Practice Test

Basic ChemistryQuestion 1 of 30

54 questions in this topic · 30 drawn at random this round

What is the purpose of preservatives in cosmetic products?

NIC National Cosmetology Theory Content Outline

Questions are based on the public NIC National Cosmetology Theory Examination Content Outline, plus OSHA/CDC/EPA standards and general cosmetology science. Each domain reflects the real-world knowledge tested on state board written exams.

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This Cosmetology Basic Chemistry practice set has 54 practice questions based on the official exam materials, each with an instant explanation. You need 75% on the real Cosmetology knowledge test to pass.

Sample questions

Three questions from the Basic Chemistry bank with the correct answer and an explanation. The practice quiz above draws 30 questions at random from the same bank.

  1. Chemistry is the study of matter. What is matter?

    • Anything that has mass and takes up space — Correct answer
    • Only substances that can be seen with the eye
    • Only liquids that flow and pour
    • Energy that has no physical form

    Explanation: Chemistry is the study of matter, and matter is anything that has mass and occupies space, whether solid, liquid, or gas.

    Handbook: Basic Chemistry — Matter

  2. What are the three states of matter?

    • Solid, liquid, and gas — Correct answer
    • Acid, base, and salt
    • Element, atom, and molecule
    • Solution, suspension, and emulsion

    Explanation: Matter exists in three physical states: solid, liquid, and gas. These differ in how their particles are arranged and move.

    Handbook: Basic Chemistry — States of Matter

  3. What is an element?

    • The simplest form of matter that cannot be broken down into a simpler substance — Correct answer
    • A mixture of two liquids that separate over time
    • Two or more substances combined physically
    • Any substance that dissolves in water

    Explanation: An element is the simplest form of matter and cannot be broken down into a simpler substance by chemical means. Oxygen, carbon, and hydrogen are examples.

    Handbook: Basic Chemistry — Elements