102 Sr Chemistry 2nd

Question 1

What term is used to identify anything that occupies space and has weight?

Accepted Answer

matter

Question 2

What type of bond easily breaks in hair due to heat or water?

Accepted Answer

Hydrogen Bonds

Question 3

On the pH scale, numbers less than 7 indicate a(n):

Accepted Answer

acidic solution

Question 4

What is an example of a chemical change?

Accepted Answer

oxygen and hydrogen combining to form water

Question 5

The most accurate method of measuring pH is with:

Accepted Answer

a pH meter

Question 6

Distilled water with a pH of 7 is considered:

Accepted Answer

neutral

Question 7

What makes up the primary composition of hair?

Accepted Answer

Keratin

Question 8

What type of electrical charge do electrons have?

Accepted Answer

negative

Question 9

What is the scientific study of matter and its changes called?

Accepted Answer

chemistry

Question 10

Which scientific division includes matter that is now living or was alive with carbon present?

Accepted Answer

organic chemistry

Question 11

Alkalis tend to taste:

Accepted Answer

bitter

Question 12

All of the following statements regarding pH are true EXCEPT:

Accepted Answer

values below 7 indicate more alkalinity

Question 13

On the pH scale, numbers greater than 7 indicate a(n):

Accepted Answer

alkaline solution

Question 14

Which statement describes the formation of human hair?

Accepted Answer

Bonding of protein chains to other protein chains

Question 15

Amino acids that create proteins are linked together end to end by:

Accepted Answer

Peptide bonds

Question 16

What is the electrical charge of protons?

Accepted Answer

positive

Question 17

Two or more of the same atoms joined together by a chemical bond is a(n):

Accepted Answer

Molecule

Question 18

What is the pH range of a pH balanced product?

Accepted Answer

4.5 to 5.5

Question 19

Hair consists of two solids which are carbon and sulfur and three gases which are hydrogen, nitrogen and:

Accepted Answer

oxygen

Question 20

Acids tend to taste:

Accepted Answer

sour

Question 21

What do atoms that are the same form?

Accepted Answer

element

Question 22

Carbon, nitrogen, oxygen and hydrogen form the basis of:

Accepted Answer

amino acids

Question 23

Atoms have three main parts: protons, neutrons, and what else?

Accepted Answer

electrons

Question 24

What type of electrical charge do neutrons have?

Accepted Answer

None

Question 25

What is created when amino acids join together in chains?

Accepted Answer

Proteins

Question 26

What is the pH range of hair, skin and nails?

Accepted Answer

4.5 to 5.5

Question 27

When a solution has an equal number of hydrogen and hydroxide ions, the solution is considered:

Accepted Answer

neutral

Question 28

Water molecules have two hydrogen atoms and one:

Accepted Answer

oxygen atom

Question 29

Chemical changes involve water turning to steam.

Accepted Answer

False

Question 30

Which of the following is NOT an example of a physical change?

Accepted Answer

iron changing to rust

Question 31

A solution that has more positive hydrogen ions than negative hydroxide ions is:

Accepted Answer

acidic

Question 32

Water freezing and becoming ice is an example of what type of change?

Accepted Answer

physical

102 Sr Chemistry 2nd

Questions 32

102 Sr Chemistry 2nd

Questions 32