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Acids And Bases
Test Description: Introduction to acids/bases and pH.
Instructions: Answer all questions to get your test result.
1) Which is a property of acidic solutions?
A
They are in many cleaning products
B
They feel slippery
C
They taste sour
D
They taste bitter
2) What is the symbol for the hydronium ion?
A
H3O+
B
OH-
C
H2O
D
H2O2
3) The reaction between an acidic solution and a basic solution is called
A
substance
B
mixture
C
saturation
D
neutralization
4) The pH of apricots is 4.5. The juice of an apricot is:
A
neutral
B
acidic
C
none of the above
D
basic
5) If a drop of apricot juice (pH of 4.5) was placed on litmus paper, it would turn which color?
A
purple
B
yellow
C
blue
D
red
6) What is the symbol for a hydroxide ion?
A
OH-
B
H3O+
C
H2O
D
H2O2
7) What ions are present in large amounts for a solution with a pH of 10?
A
hydroxide ions
B
hydrogen ions
C
oxygen ions
D
hydronium ions
8) Some materials change this property when in contact with acids/bases, making them great indicators
A
acidity
B
concentration
C
smell
D
color
9) Which is NOT a property of a base?
A
They are slippery and bitter
B
They have a pH above 7
C
They change litmus paper to a red color
D
They produce hydroxide ions
10) Stomach acid has a pH of
A
14
B
0
C
7
D
2
*select an answer for all questions
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