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TGL6:
Using these ideas
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‘Think for yourself’ questions
Which substances have a giant structure?
A,C, F and G.
Which substances have a molecular structure?
B,D,E and H.
Which substance has a complex giant structure?
G.
Which substances are elementary substances?
A and H. There is only one type of
atom.
Which substances are compound substances?
B,C, D, E, F and G. There is more
than one type of atom.
Which four substances are likely to be in the solid state
at room temperature? Give your reasoning.
A,C,F and G. Giant structures tend
to have high melting points, and these are likely to be above
room temperature.
Which three substances are likely to be in the gas state at
room temperature? Give your reasoning.
B,D and H. Molecular substances with
small molecules tend to have very low boiling points.
Which substance is likely to be in the liquid state at room
temperature? Give your reasoning.
E. This is the molecular structure
with the biggest molecules. The hold between these molecules
is likely to be greater than between smaller molecules and
may be strong enough to give a boiling point above room temperature.
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Science Enhancement Programme CD-ROM 2005 |
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user
guide |
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