Notes on ‘Think for Yourself ‘questions
Ammonia is in the gas state at room temperature. What structure
would you expect it to have?
Small molecules. The particles have
a weak hold on each other, so at room temperature they have
enough energy to stay apart.
Hydrogen chloride is in the gas state at room temperature.
What structure would you expect it to have?
Small molecules. The particles have
a weak hold on each other, so at room temperature they have
enough energy to stay apart.
Ammonium chloride is in the solid state at room temperature.
What structure would you expect it to have?
Bigger molecules or a giant structure:
Bigger molecules have a greater hold on each other and this
could give a melting point above room temperature.
Giant structures have high melting points, well above room
temperature.
In fact, it has a complex giant structure, as can be seen
on page M2.3.
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