Density is used to make a fair comparison between materials. Key fact Density is the mass per unit volume of a material i.e. density is the mass of 1 cm 3 or 1 m 3 of a material. The density of ...
The particles of a solid are very close together. It melts when it changes from the solid state to the liquid state. The same mass of liquid will have slightly greater volume than the solid. As ...
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