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Homework Help: Chemistry word equations

  1. Oct 19, 2009 #1
    1. The problem statement, all variables and given/known data
    Ok I am absolutely terrible at chemistry and a friend asked me to help her with this and she has no one else so i figured I would come here.

    Write the word equation and balanced equation:

    Ca(s) + Na2(g) -> Ca3Na2(s)

    3. The attempt at a solution

    Would the word equation just be Calcium + Sodium -> Tricalcium disodium? what about the balanced equation?

    6Ca + 2Na2 -> Ca3Na2(s)

    I have a feeling i'm doing this completely wrong lol.
  2. jcsd
  3. Oct 19, 2009 #2


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    Staff Emeritus
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    Gold Member

    I'm not gonna touch the "word equation." I wonder whether the compound is really called Tricalcium disodium...sounds funny.

    You have 6 calcium atoms on the left hand side and only 3 on the right hand side. How is that balanced?
  4. Oct 19, 2009 #3
    Perhaps something like "n moles of solid calcium plus ... yields ... " ?
  5. Oct 19, 2009 #4


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    Staff: Mentor

    You sure it is not nitrogen instead of sodium?

  6. Oct 19, 2009 #5
    Last edited: Oct 19, 2009
  7. Oct 19, 2009 #6
    That balances it.
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