Acids And Bases Worksheet Page 2
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1
2
3stomach acid
(ii)
(b) sulfuric acid
fizzy drinks
(iii)
(c) hydrochloric acid
6. List two common bases: ________________ and _________________
7. Universal indicator can be used to find the pH of a substance by
matching a colour change to a colour chart. This tells us how strong an
acid or a base is. Add numbers to the chart below to show the pH scale.
3
1
5
7
9
11
12
14
Now, match each pH range below with how strong an acid or base it is.
pH 1 – pH 3
(i)
(a) weak acid
pH 5 – pH 7
(ii)
(b) strong base
pH 7
(iii)
(c) strong acid
pH 7 – pH 9
(iv)
(d) neutral
pH 10 – pH 14
(v)
(e) weak base
8. Complete the table to list the elements in each of the following acids or
bases.
Substance
Formula
Element 1
Element 2
Element 3
Hydrochloric
H
acid
H
SO
2
4
Sodium
O
hydroxide
Ca(OH
)
2
9. Using a diagram to show your idea, design an experiment to test
whether cauliflower extract can act as a pH indicator.
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