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7 questions
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  • Q1
    True or False: Bonds are broken or formed when physical changes occur.
    False
    True
    30s
  • Q2
    If energy is released when bonds are broken during a reaction, the reaction is...?
    Endothermic
    Exothermic
    30s
  • Q3
    Of the following states of matter, which requires the most energy to remain in that state: liquid, gas, solid, or plasma
    Gas
    Plasma
    Solid
    Liquid
    30s
  • Q4
    Is the following an example of an endothermic or exothermic reaction: Turning liquid water into ice.
    Exothermic
    Endothermic
    30s
  • Q5
    The law of conservation of energy states that energy is always __________?
    Conserved
    30s
  • Q6
    An exothermic reaction is represented by_______?
    -q
    +q
    30s
  • Q7
    Burning wood, mixing baking soda with vinegar, are examples of _________ changes.
    Chemical
    Physical
    30s

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