102.7 Flashcards
(24 cards)
pH stands for:
A. Perfect hair
B. Product hydration
C. Potential hydrogen
D. Potential hydroxide
Potential hydrogen
What kind of substance does pH indicate the acidity or alkalinity of?
A. Oil-based
B. Water-based
C. Alcohol-based
D. Hydrogen-based
Water-based
Solutions that are acidic or alkaline in value can be dissolved in and/or contain:
A. Salt
B. Water
C. Carbon
D. Hydrogen
Water
What ingredient is listed as the primary ingredient on many skin care products?
A. Oil
B. Salt
C. Water
D. Ammonia
Water
A substance that increases the concentration of hydrogen ions when placed in water because it donates, or releases, H+ ions is a(n):
A. Base
B. Acid
C. Alkali
D. Alkaline
Acid
Water molecules have two hydrogen atoms and one:
A. Sulfur atom
B. Helium atom
C. Oxygen atom
D. Nitrogen atom
Oxygen atom
Why is pure water considered a neutral substance?
A. Ions are all positively charged
B. Anions and cations are present
C. Positive and negative alkali cancel each other out
D. Positive and negative ions balance each other out
Positive and negative ions balance each other out
A solution that has more negative hydroxide ions than positive hydrogen ions is:
A. Acidic
B. Neutral
C. Alkaline
D. Slightly alkaline
Alkaline
When a solution has an equal number of hydrogen and hydroxide ions, the solution is considered:
A. Acidic
B. Neutral
C. Positive
D. Negative
Neutral
What happens when an alkali is placed in water?
A. They neutralize each other
B. There are fewer “loose” OH- ions
C. Alkali increases the concentration of hydrogen ions
D. Alkali decreases the concentration of hydrogen ions
Alkali decreases the concentration of hydrogen ions
Acids tend to taste:
A. Sour
B. Sweet
C. Salty
D. Bitter
Sour
Alkalis tend to taste:
A. Sour
B. Sweet
C. Salty
D. Bitter
Bitter
What is a negatively charged ion called?
A. Acid
B. Anion
C. Cation
D. Hydrogen
Anion
All of the following statements regarding the pH scale are true EXCEPT:
A. 7 indicates a neutral substance
B. Values below 7 indicate more acidity
C. Values below 7 indicate more alkalinity.
D. Logarithmic scale that identifies the degree of acidity or alkalinity of a substance
Values below 7 indicate more alkalinity
Distilled water with a pH of 7 is considered:
A. A salt
B. Neutral
C. An acid
D. An alkali
Neutral
On the pH scale, numbers less than 7 indicate a(n):
A. Acidic solution
B. Neutral solution
C. Chemical solution
D. Alkaline solution
Acidic solution
On the pH scale, numbers greater than 7 indicate a(n):
A. Acidic solution
B. Neutral solution
C. Chemical solution
D. Alkaline solution
Alkaline solution
A pH of 5 is how many times more acidic than a pH of 6?
A. 1.5
B. 10
C. 100
D. 1,000
10
What color does blue litmus paper turn when placed in an acid?
A. Red
B. White
C. Green
D. Orange
Red
What color does red litmus paper turn when placed in an alkali?
A. Blue
B. White
C. Green
D. Orange
Blue
Chris was looking for a pH-balanced product to use. pH balanced refers to a product that ranges from a pH of:
A. 4.5 to 5.5
B. 6.5 to 7.0
C. 7.5 to 10.5
D. 11.5 to 12.0
4.5 to 5.5
In what pH range is hair,skin, and nails?
A. 4.5 to 5.5
B. 6.5 to 7.0
C. 7.5 to 10.5
D. 11.5 to 12.0
4.5 to 5.5
On the pH scale, the closer you get to 14, the stronger the acidity.
A. True
B. False
False
The average pH range of hair, skin and nails is 4.5 to 5.5.
A. True
B. False
True
