Activity Index
Properties of Acids and Bases
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What two substances are always produced by a neutralization reaction?
?
an acid and a base
?
water and a base
?
water and a salt
?
water and an acid
An acid is:
?
a hydrogen ion (H
+
) donor
?
a hydrogen ion (H
+
) acceptor
?
a hydrogen ion (H
+
)
?
a hydrogen ion (H
+
) destroyer
A base is:
?
a hydrogen ion (H
+
) donor
?
a hydrogen ion (H
+
) acceptor
?
a hydrogen ion (H
+
)
?
a hydrogen ion (H
+
) destroyer
When acids react with metals, the gas produced is:
?
carbon dioxide
?
hydrogen
?
oxygen
?
water vapor
Acids taste:
?
Sweet
?
Salty
?
Bitter
?
Sour
Bases taste:
?
Sweet
?
Salty
?
Bitter
?
Sour
A positive test for an acid occurs when:
?
red litmus turns blue
?
red litmus remains red
?
blue litmus turns red
?
blue litmus remains red
A positive test for a base occurs when:
?
red litmus turns blue
?
red litmus remains red
?
blue litmus turns red
?
blue litmus remains red
Bases cause phenolphthalein to turn:
?
orange
?
green
?
violet
?
clear
The characteristic ion of bases is:
?
hydrogen ion (H
+
)
?
hydroxide ion (OH
-
)
?
sodium ion (Na
+
)
?
carbonate ion CO
3
2-
The characteristic ion of acids is:
?
hydrogen ion (H
+
)
?
hydroxide ion (OH
-
)
?
phosphate ion PO
4
3-
?
carbonate ion CO
3
2-
Which of the following statements is true?
?
Acids and bases are electrolytes
?
Acids are electrolytes and bases are nonelectrolytes
?
Acids are nonelectrolytes and bases are electrolytes
?
Acids and bases are nonelectrolytes
Strong acids:
?
Ionize slightly and produce few hydrogen ions in solution
?
Ionize completely and produce many hydroxide ions in solution
?
Ionize completely and produce many hydrogen ions in solution
?
Ionize slightly and produce few hydroxide ions in solution
Indicator
Results
Phenolphthalein
Clear
Red litmus
Remains red
Blue litmus
Turns red
Methyl orange
Turns deep red
An unknown substance produced the experimental results noted above. Based on this data, the unknown is:
?
a base
?
a sugar
?
an acid
?
impossible to identify
The strongest bases are hydroxides of:
?
halogens
?
noble gases
?
transition metals
?
group 1 and group 2 metals
Which of the following is NOT a formula for an acid?
?
HCl (aq)
?
H
2
SO
4
(aq)
?
NaOH (aq)
?
HNO
3
(aq)
Which of the following is a property of acids?
?
Feel slippery
?
Turn red litmus blue
?
taste bitter
?
react with carbonates to form CO
2
gas
In a neutralization reaction between sodium hydroxide, NaOH, and hydrochloric acid, HCl, the salt produced would be:
?
sodium hydrochloride
?
hydrochloric hydroxide
?
sodium chloride
?
sodium acid
Acids have a pH that is:
?
less than 7
?
equal to 7
?
greater than 7
Bases have a pH that is:
?
less than 7
?
equal to 7
?
greater than 7
OK
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