Science: pH Flashcards
Substances of acidic or alkaline nature dissolve in water and/or contain:
a. salt
b. water
c. carbon
d. hydrogen
b. water
A solution that has more positive hydrogen ions than negative hydroxide ions is:
acidic
When a solution has an equal number of hydrogen and hydroxide ions, the solution is considered:
neutral
Distilled water with a pH of 7 is considered:
neutral
On the pH scale, numbers less than 7 indicate a(n):
acidic solution
On the pH scale, numbers greater than 7 indicate a(n):
alkaline solution
A pH of 5 is how many more times acidic than a pH of 6?
10
The most accurate method of measuring pH is with:
a pH meter
What is the pH range of hair, skin and nails?
4.5 to 5.5
pH balanced refers to a product that ranges from a pH of:
4.5 to 5.5
What is pH
Potential Hydrogen: Numerical measurement that indicates the acidity or alkalinity of a water-based substance
What solution has more positive hydrogen ions than negative hydroxide ions?
acidic, neutral, or alkaline
acidic
What solution has an equal number of positive and negative ions?
acidic, neutral, or alkaline
neutral
what solution has more negative hydroxide ions?
acidic, neutral, or alkaline
alkaline
The pH scale is a logarithmic scale. True or False?
True
