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anonymous

  • one year ago

Using the following diagram, determine which of the statements below is true: A. The energy of the combined reactants is higher than that of the combined products. B. The energy of the combined products is higher than that of the combined reactants. C. The activation energy required for the forward reaction is higher than that required for the reverse reaction. D. The activation energy required for the forward and reverse reactions is the same.

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  1. cuanchi
    • one year ago
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    please show the diagram otherwise any answer can be correct

  2. anonymous
    • one year ago
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    I put an attachment up

  3. Photon336
    • one year ago
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    First of all what do you think it is?

  4. aaronq
    • one year ago
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    there's no attachment

  5. anonymous
    • one year ago
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    I think it's C

  6. anonymous
    • one year ago
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    And I tried putting another attachment, but it won't let me.

  7. Photon336
    • one year ago
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    @kristianatime hmm could you post it in the reply

  8. anonymous
    • one year ago
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    Attachment of problem

    1 Attachment
  9. anonymous
    • one year ago
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    Did that work?

  10. Photon336
    • one year ago
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    great let's look a this

  11. anonymous
    • one year ago
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    You know, I'm not sure. I'm not good at chemistry at all, so that was just my educated guess.

  12. Photon336
    • one year ago
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    okay let's look at this graph and step by step

  13. anonymous
    • one year ago
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    Sounds good. I really need help in Chemistry so I'm all ears in learning this.

  14. Photon336
    • one year ago
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    |dw:1443491118578:dw|

  15. Photon336
    • one year ago
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    @kristinatime that arrow i drew is the activation energy for the forward reaction, let me ask you something is this reaction endothermic or exothermic and how do you know?

  16. anonymous
    • one year ago
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    I didn't get anything you drew. Or couldn't pull up what you drew.

  17. Photon336
    • one year ago
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    it's basically the same picture you had. if you're using the phone app you may not be able to see it. well from the figure you posted is that an exothermic or endothermic reaction and why?

  18. anonymous
    • one year ago
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    Oh yeah I'm using the app. And I think it would be exothermic because it is rising.

  19. aaronq
    • one year ago
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    Endo is when the chemicals end up at a higher energy state, and exo when they end up at a lower one.

  20. anonymous
    • one year ago
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    Well I feel dumb. Ha

  21. Photon336
    • one year ago
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    @kristinatime, look at where the energy for A+B and C+D if C+D is higher than A+B then it's endo, if it's lower than A+B it's exothermic.

  22. anonymous
    • one year ago
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    Then it is exothermic?

  23. aaronq
    • one year ago
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    \(\checkmark \) lol

  24. anonymous
    • one year ago
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    What is that?

  25. Photon336
    • one year ago
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    @kristinatime for the figure you posted A+B are at 40 KJ while C+D are at 20Kj the enthalpy is equal to products - reactants and 20-40KJ = -20kj SO this is negative exothermic reaction this number means that energy was released from the reaction,

  26. anonymous
    • one year ago
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    Ohhhh okay I'm understanding it better now.

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