Ammonia Acid Worksheet With Answers Page 17
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49(i)
Complete the sentences by crossing out the incorrect word in each box.
high
Reaction 1 takes place at a
temperature.
low
high
Reaction 2 takes place at a
temperature.
low
(1)
(ii)
Draw a ring around the word which best describes reactions 1 and 2.
combustion
displacement
oxidation
reduction
reversible
(1)
(iii)
Suggest a reason for the mineral wool at the top of the test tube.
...........................................................................................................................
...........................................................................................................................
(1)
(b)
In the second experiment the student mixed a small amount of ammonium chloride with
some water in a beaker.
The temperature of the water was measured before and after adding the ammonium
chloride.
Temperature before adding
20°C
the ammonium chloride
Temperature after adding
16°C
the ammonium chloride
Draw a ring around the word which best describes the process which takes place.
combustion
displacement
endothermic
exothermic
freezing
(1)
(Total 4 marks)
Page 17 of 49
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education