Properties of Acids and Bases Answers

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1
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Which statement would indicate the presence of an acid?

A
It tastes bitter..
B
It does not react with active metals.
C
It reacts with active metals to form a gas.
D
It does not change the color of litmus paper
2
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Which is a property of acids in aqueous solutions?

A
They feel soapy.
B
They taste bitter.
C
They increase the concentration of H+ ions.
D
They decrease the concentration of H+ ions.
3

The reaction below demonstrates which characteristic of a base?

Question illustration
A
the ability of bases to release sodium ions into solution
B
the ability of bases to release hydrogen ions into solution
C
the ability of a base to react with carbonate or bicarbonate
D
the ability of a base to react with a soluble metal salt
4

H2CO3 is used in soft drinks. What is the name of this compound?

A
sulfuric acid
B
carbonic acid
C
tartaric acid
D
hydrochloric acid
5

What is a base used in deodorants?

A
sorbitol
B
carrageenan
C
magnesium hydroxide
D
sodium lauryl sulfate
6

H2SO4 is added to a large beaker of water. How is the solution different from the original water?

A
The solution turns blue litmus to red.
B
The solution turns phenolphthalein pink.
C
The solution has fewer hydrogen ions.
D
The solution has more hydroxide ions.
7

Which is a characteristic of a strong base?

A
It turns pink phenolphthalein colorless.
B
It turns blue litmus paper red.
C
It releases H+ ions into a solution.
D
It removes H+ ions from solution.
9

Which of the following best defines an acid?

A
An acid has a pH of 7.
B
An acid has hydroxide ions.
C
An acid has fewer positive ions in solution.
D
An acid has more hydrogen ions in solution.
10

Which compound plays an important role in leather processing and electroplating?

A
nitric acid
B
hydrochloric acid
C
ammonia
D
magnesium hydroxide

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