Question

Name one sublimable substance.
Ice
Cotton wool
Dry ice
Soap
The change of state of a liquid into vapour state on heating is called ________.
Boiling
Melting
Fusion
Condensation
The process by which a solid changes into a liquid is called _______.
Melting
Condensation
Evaporation
Freezing
Name one most common element found in universe.
Nitrogen
Oxygen
Hydrogen
Carbon
What is the proprtion of elements by mass in ZnCl2
1:8
3:8
5:2
65:71​

Answer 1

Answer:

1) Cotton Wool

2)Boiling

3)Melting

4)Hydrogen

5)65:71

Explanation:

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