102b.12 - pH Flashcards
Review questions in lesson challenge
1
Q
Substances of acidic or alkaline nature dissolve in water and/or contain:
A
Water
2
Q
A solution that has more positive hydrogen ions than negative hydroxide ions is:
A
Acidic
3
Q
When a solution has an equal number of hydrogen and hydroxide ions, the solution is considered:
A
Neutral
4
Q
Distilled water with a pH of 7 is considered:
A
Neutral
5
Q
On the pH scale, numbers less than 7 indicate a(n):
A
Acidic solution
6
Q
On the pH scale, numbers greater than 7 indicate a(n):
A
Alkaline solution
7
Q
A pH of 5 is how many more times acidic than a pH of 6?
A
10
8
Q
The most accurate method of measuring pH is with:
A
A pH meter
9
Q
pH balanced refers to a product that ranges from a pH of:
A
4.5 to 5.5
10
Q
What is the pH range of hair, skin and nails?
A
4.5 to 5.5
