The diagram shows the changes in state of water (H2O). What is the process X called?
Evaporation
Freezing
Melting
Boiling
Anything that occupies space and has mass is known as
Object
Subject
Matter
Weight
Equal volumes of all gases under similar conditions of temperature and pressure contain equal numbers of molecules. This statement was made by
John Dalton
Berzilius
Avogardo
Gay-Lussac
The density of water is maximum at
0°C
100°C
4°C
273K
When the temperature of a liquid is increased a little, what happens to its particles?
They stop vibrating.
They move so far apart that the liquid becomes a gas.
They start vibrating more.
They come closer together.
