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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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kjustice4 kjustice4
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6 years ago
Which of the following statements about chemical reactions are true?
   
  1.
  Exothermic reactions occur at a rapid rate.
  2.
  The products of exothermic reactions are lower in energy than the reactants.
  3.
  Exothermic reactions give off heat.
  4.
  The products of endothermic reactions are lower in energy than the reactants.
   
  A)
  3
  B)
  1, 2, and 3
  C)
  1, 3, and 4
  D)
  2 and 3
  E)
  2
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yaman5959yaman5959
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6 years ago
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kjustice4 Author
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6 years ago
Thanks
rudy.zondo
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Yesterday
Thank you, thank you, thank you!
gma_of_7
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2 hours ago
this is exactly what I needed
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