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7/31/2019 KS3 7E Acids and Alkalis
1/12
Acids and Alkalis
KS3 Unit 7E
7/31/2019 KS3 7E Acids and Alkalis
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What is the pH of a neutral solution?
pH1 pH7 pH11 pH14
25% 25%25%25%1. pH 1
2. pH 7
3. pH 11
4. pH 14
7/31/2019 KS3 7E Acids and Alkalis
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What is the pH of a strongly acidic solution?
pH1 pH7 pH11 pH14
25% 25%25%25%
1. pH 1
2. pH 7
3. pH 11
4. pH 14
7/31/2019 KS3 7E Acids and Alkalis
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What is the pH of a strongly alkaline solution?
pH1 pH5 pH7 pH14
25% 25%25%25%1. pH 1
2. pH 5
3. pH 7
4. pH 14
7/31/2019 KS3 7E Acids and Alkalis
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Where on the pH scale would you
put lemon juice?
W X Y Z
PointW
PointX
PointY
PointZ
25% 25%25%25%1. Point W
2. Point X
3. Point Y
4. Point Z
7/31/2019 KS3 7E Acids and Alkalis
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Bee stings are acidic. Which of these
chemicals should you put on a bee sting?
Vinegar
Lemo
nJuic
e
Distille
dWate
r
B
icarbon
ateofSod
a
25% 25%25%25%
1. Vinegar
2. Lemon Juice
3. Distilled Water
4. Bicarbonate of Soda
7/31/2019 KS3 7E Acids and Alkalis
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Complete this equation:
Acid + Base
Carbon
diox
ide
Wate
r
Salt
+water
Salt
+gas
25% 25%25%25%
1. Carbon dioxide
2. Water
3. Salt + water
4. Salt + gas
7/31/2019 KS3 7E Acids and Alkalis
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25cm3 of Hydrochloric Acid is added to 25cm3
of Sodium Hydroxide. What kind of reaction will
take place?
Fertilis
ation
Corrosio
n
N
eutra
lisation
Evaporatio
n
25% 25%25%25%
1. Fertilisation
2. Corrosion
3. Neutralisation
4. Evaporation
7/31/2019 KS3 7E Acids and Alkalis
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What salt is made in this reaction?
Hydrochloric Acid + Sodium Hydroxide
Sodiu
mHy
drate
Hy
drogen
Chlo
ride
Sodium
Sulp
hate
Sodium
Chlo
ride
25% 25%25%25%
1. Sodium Hydrate
2. Hydrogen Chloride
3. Sodium Sulphate
4. Sodium Chloride
7/31/2019 KS3 7E Acids and Alkalis
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What salt is made in this reaction?
Sulphuric Acid + Sodium Hydroxide
Sodiu
mHy
drate
Hy
drogen
Chlo
ride
Sodium
Sulp
hate
Sodium
Chlo
ride
25% 25%25%25%
1. Sodium Hydrate
2. Hydrogen Chloride
3. Sodium Sulphate
4. Sodium Chloride
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Carbon dioxide is given off when:
Acarbon
atereacts
w...
Wate
risa
dded
toan...
Ametalr
eacts
with
a...
Asaltr
eactsw
ithan
...
25% 25%25%25%
1. A carbonate reacts with an acid
2. Water is added to an acid
3. A metal reacts with an acid
4. A salt reacts with an acid
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Hydrogen is given off when:
Acarbon
atereacts
w...
Wate
risa
dded
toan...
Ametalr
eacts
with
a...
Asaltr
eactsw
ithan
...
25% 25%25%25%
1. A carbonate reacts with an acid
2. Water is added to an acid
3. A metal reacts with an acid
4. A salt reacts with an acid