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29 October, 21:55

Look at the chemical equation: Zn + 2HCl → ZnCl2 + H2 How many atoms of hydrogen (H) are present on both sides of the equation?

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Answers (2)
  1. 29 October, 22:15
    0
    There are 2 atoms of hydrogen at each side of the equation

    Explanation:

    At the left side there are 2 molecules of HCl, each with 1 atom of hydrogen, and at the right side there is 1 diatomic hydrogen molecule, 2 atoms of hydrogen covalently united (H-H).
  2. 30 October, 01:20
    0
    There are 2 hydrogen atoms on each side of the equation
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