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14 February, 16:12

Mg +  __HCl  → MgCl2 + H2

What coefficient is needed to balance the equation?

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Answers (1)
  1. 14 February, 17:42
    0
    The coefficient of the blank is 2

    Explanation:

    The balanced equation is Mg + 2HCl - > MgCl2 + H2.
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