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Chemical Reactionsx

chemistry topic1

QuestionAnswer
the dissolving substance is called...? the solute.
the liquid used to dissolve the substance is called...? the solvent.
chemical reactions usually involve some or all of what three changes? - formation of a new substance - change in appearance - detectable energy change.
what kind of reaction is "rusting"? oxidation
what is the colour change of iodine solution in the presence of starch? orange/brown -> blue/black.
how are compounds formed? when elements react together.
what is a reactant? a strting material in a chemical reaction.
what is a solution? the mixture formed when a solute dissolves in a solvent.
what is a saturated solution? when there is so much solute it can no longer be dissolved in the solvent.
Created by: 1126866252
 

 



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