Basic Chemistry — Cosmetology Practice Test
54 questions in this topic · 30 drawn at random this round
Which statement correctly describes oxidation and reduction (redox)?
Session Progress
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.
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
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
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