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31 July, 00:49

Sodium (Na) reacts with chlorine gas (Cl2

) to form sodium chloride (NaCl) as shown in the

equation:

2Na + Cl2 → 2NaCl

If 4 moles of chlorine gas react, how many moles of sodium will react?

+5
Answers (2)
  1. 31 July, 00:57
    0
    Remark

    The balance numbers in front of the chemicals tell you how to set up the proportion to solve your question

    For every 2 moles Na only 1 mole of Cl2 is required.

    Equation

    2 moles Na:1 mole Cl2 : : x moles Na:4 moles Cl2

    Solution

    2/1 = x/4 Cross multiply

    2*4 = x*1

    8 = x

    Conclusion

    8 moles of Na will be used. <<< Answer
  2. 31 July, 01:02
    0
    The equation shows that for every mole of Cl2 that react, 2 moles of Na react too. You can find how many moles of sodium react like this:

    4 moles Cl2 x (2 moles Na / 1 mole Cl2) = 8 moles Na

    8 moles of Sodium react
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