Lots of energy (heat) is required to break the bond apart, resulting in high melting and boiling points.
However, its very high melting point makes it difficult to fashion into parts.
One such property is its relatively high melting and boiling point temperatures; more energy is required to break the hydrogen bonds between molecules.
Since the saturated fatty acids are higher melting than the unsaturated relatives, the process is called hardening.
Therefore metals often have high melting or boiling points.
Some substances actually have a very high melting point so that they decompose (burn) before they melt.
As a result, they generally have very high melting and boiling points.
Ionic compounds have high melting and boiling points due to the large amount of energy required to break the forces between the charged ions.
Some atoms or molecules have higher melting or vaporization temperatures than others.
Very roughly speaking, substances with high melting and/or boiling temperatures have strong forces of attraction - diamond for example.
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