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| M3.2
REACTANTS AND PRODUCTS (1) |
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LINKS |
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Tests show that
the bag contains just one substance: hydrogen.
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Test show that the white powder
is just one substance: calcium hydroxide.
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Answer the questions, then check your predictions on
the next screen.
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Think for Yourself... |
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Calcium has a high
melting point. It is an elementary substance. What structure
would you expect it to have? 
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What structure
does water have?
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Calcium hydroxide
doesn't melt at high temperatures. What structure is
it likely to have? |
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Hydrogen is in the gas state
at room temperature. It is an elementary substance.
What structure would you expect it to have?
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| a
Science Enhancement Programme CD-ROM 2005 |
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user
guide |
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