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(Blank)
100
If something has a pH of 1, that substance is considered very acidic.
- True
- False
True
100
One of these is a base :
1. Lemon
2. water
3. Baking soda
Baking soda
100
If something has a pH of 7, that substance is considered very acidic.
- True
- False
False
100
A liquid with a pH of 7 is ..........................
Neutral
200
A liquid with a pH of 1 is ..........................
Acid
200
A liquid with a pH of 10 is ..........................
base
200
pickles taste sour because they contain
- pH.
- bleach.
- acid.
acids
200
The PH for drinking water is .....
7
500
Baking soda and antacid tablets are examples of two common ....
- acids
- bases
- ions
Bases
500
An acid-base ........................ tells us whether we have an acid or a base.
indicator
500
Coffee and cocoa taste bitter because they contain...
1. acids
2. bases
Bases
500
Bases can often feel.........
- rough
- moldy
- slippery
Slippery
700
If indicator paper is red, the pH of the substance being tested is acidic....
- True
- False
True
700
You can determine the concentration of acids or bases in a solution by using .......................
PH scale
700
Bases will often taste........
Bitter
700
A liquid with a pH of 10 is..............
- a base
- an acid
- neutral
a base
1000
Which property best describes the lemon?
- sour
- sweet
Sour
1000
Which item is NOT an acid?
- sugar
- lemon juice
Sugar
1000
Given the list below, which includes pH values:
• Lemons - pH 2
• Seawater - pH 8
• Grapefruit - pH 3
• Soap - pH 12
Arrange the acids in order of increasing levels of acidity.
Saop < Seawater < Grapefruit < Lemons
1000
What of the following is not true about acids?
- tastes sour
- feels slippery
tastes sour