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6 questions
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  • Q1
    Physical changes are easily reversible by changing the ______, for example changing the state of water from ice to liquid by heating, and back to ice by cooling.
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    30s
  • Q2
    Why are some reactions reversible?
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    30s
  • Q3
    If the forward reaction of a reversible reaction is exothermic, the backward reaction will be ______.
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    30s
  • Q4
    To carry out the experiment with hydrated and anhydrous copper sulfate, put the steps in order:
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    30s
  • Q5
    How can reaction conditions be changed so that reaction rates change?
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  • Q6
    Models have limitations. What does this image of the particle model NOT attempt to show?
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