chemistry topic1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| the dissolving substance is called...? | the solute.
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| the liquid used to dissolve the substance is called...? | the solvent.
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| chemical reactions usually involve some or all of what three changes? | - formation of a new substance - change in appearance - detectable energy change.
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| what kind of reaction is "rusting"? | oxidation
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| what is the colour change of iodine solution in the presence of starch? | orange/brown -> blue/black.
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| how are compounds formed? | when elements react together.
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| what is a reactant? | a strting material in a chemical reaction.
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| what is a solution? | the mixture formed when a solute dissolves in a solvent.
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| what is a saturated solution? | when there is so much solute it can no longer be dissolved in the solvent.
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