Description
Answer Key
1 B
2 A
3 C
4 C
5 A
6 B
7 B
8 D
9 D
10 A
11 B
12 C
13 A
14 A
15 C
16 D
17 A
18 C
19 B
20 A
21 A
22 C
23 A
24 A
25 B
1. What is chemistry?
2. What is matter?
3. Which of the following is a state of matter?
4. What is an element?
5. What is an atom?
6. What is a molecule?
7. What is a compound?
8. Which of the following is an example of a physical change?
9. Which of the following is an example of a chemical change?
10. What is a solution?
11. In a solution, the substance that dissolves another substance is called the:
12. In salt water, the salt is the:
13. What is an emulsion?
14. What is an emulsifier?
15. What is pH used to measure?
16. What number is neutral on the pH scale?
17. Substances with a pH below 7 are:
18. Substances with a pH above 7 are:
19. How do alkaline products generally affect the hair?
20. How do acidic products generally affect the hair?
21. What is oxidation?
22. What is reduction?
23. Hydrogen peroxide is commonly used in cosmetology as a/an:
24. What is a surfactant?
25. Why is chemistry important in cosmetology?