The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be prepared from the reaction between sodium metal and fluorine gas. Which properly represents the balanced c

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The fluoride cleanse in dental offices usually contains sodium fluoride. Sodium fluoride can be unhesitating from the reaction between sodium metal and fluorine gas. Which rightly represents the balanced chemical equation for this reaction?

  1. Na(s) F2(g) → NaF2(s)
  2. Na(s) F(g) → NaF(s)
  3. 7Na(s) F(g) → Na7F(s)
  4. 2Na(s) F2(g) → 2Na2F(s)
  5. 2Na(s) F2(g) → 2NaF(s)

Why is it weighty to conceive this equation? What do you hold could happen if this is inexact?

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