probablyacommunist

14.04.2021 • 

Chemistry

QUESTION 1 A beaker with fine ice is taken from a freezer and left on a laboratory table to melt
The temperature is measured every 5 minutos for one hour. The temperature in the
laboratory is 20'C. The results are tabled below
35
40
15
10
20
0
25
0
Time min) 5
Temp/C5105
45
18
30
2
50
19
55
20
1.1 Use the information in the table and draw a line graph on the graph paper
provided
(6)
1 2 What was the temperature in the froever?
(2)
1.3 What happens to the loo between 15 and 20 minutes after it has been taken from
the freezer
(2)
1.4 Why was the temperature in this time not changed?
1.5 Which property of loe causes it to float in water?
1.6 What in the structure of water, makes the property in 1.5 possible?
1.7 in this property of Ice (named in 1.5) did not exist, how would the marine life in
the cold arctic regions be influenced by ir?
[15]​

Ответ:

u8p4

02.11.2021

Chemistry

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I do not know the answer

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