Can hard and rigid character of matters shows that they are the ionic compounds??
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The truck pictured above is spreading crystals of the salt calcium chloride on a snowy road to prevent ice from forming. The crystals lower the freezing point of water so when the snow melts, it won’t turn to ice. Do you know why calcium chloride lowers the freezing point of water? The answer has to do with the type of compound that calcium chloride is. Calcium chloride is an ionic compound.
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Water can take many forms. At low temperatures (below 0oC
0
o
C
), it is a solid. When at "normal" temperatures (between 0oC
0
o
C
and 100oC
100
o
C
), it is a liquid. While at temperatures above 100oC
100
o
C
, water is a gas (steam). The state the water is in depends upon the temperature. Each state (solid, liquid, and gas) has its own unique set of physical properties. Matter typically exists in one of three states: solid, liquid, or gas.
0
o
C
), it is a solid. When at "normal" temperatures (between 0oC
0
o
C
and 100oC
100
o
C
), it is a liquid. While at temperatures above 100oC
100
o
C
, water is a gas (steam). The state the water is in depends upon the temperature. Each state (solid, liquid, and gas) has its own unique set of physical properties. Matter typically exists in one of three states: solid, liquid, or gas.
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