Basic Chemistry & Hair/Follicle Science — Esthetician Practice Test
44 questions in this topic · 30 drawn at random this round
What is the approximate normal pH range of healthy skin, often called the acid mantle?
Session Progress
This Esthetician Basic Chemistry & Hair/Follicle Science practice set has 44 practice questions based on the official exam materials, each with an instant explanation. You need 75% on the real Esthetician knowledge test to pass.
Sample questions
Three questions from the Basic Chemistry & Hair/Follicle Science bank with the correct answer and an explanation. The practice quiz above draws 30 questions at random from the same bank.
In chemistry, what is matter defined as?
- Anything that has mass and occupies space — Correct answer
- Only substances that can be seen with the naked eye
- Any liquid used in a cosmetic product
- A substance that has no measurable weight
Explanation: Matter is anything that has mass and takes up space, including solids, liquids, and gases used in cosmetic products.
Handbook: Basic Chemistry & Hair/Follicle Science — Matter Basics
What is an element?
- A substance that cannot be broken down into simpler substances by ordinary chemical means — Correct answer
- A mixture of two or more chemicals
- Any product with a pleasant fragrance
- A substance found only in synthetic products
Explanation: An element is a pure substance made of only one type of atom that cannot be broken down further by ordinary chemical reactions, such as oxygen or hydrogen.
Handbook: Basic Chemistry & Hair/Follicle Science — Matter Basics
What is an atom?
- The smallest unit of an element that retains the properties of that element — Correct answer
- A combination of two different elements
- A large molecule found only in oils
- The outer layer of skin cells
Explanation: An atom is the smallest building block of an element that still has the chemical characteristics of that element.
Handbook: Basic Chemistry & Hair/Follicle Science — Matter Basics