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Balance sodium reacting with water.

Exercise and reference answers

Left
  1. Coefficient
    2
    Formula
    Na
  2. Coefficient
    2
    Formula
    H₂O
Right
  1. Coefficient
    2
    Formula
    NaOH
  2. Coefficient
    1
    Formula
    H₂
Instructions
Na + H₂O → NaOH + H₂

Explanation

_Source: syllabus Science, Ch 3 'Metals and Non-Metals' §3.2.4_
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