How does magnesium react with hydrochloric acid?

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How does magnesium react with hydrochloric acid?

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Answer 1 · 2017-03-23T14:20:36

$Magnesium metal + hydrochloric acid$ $"Magnesium metal + hydrochloric acid"$
$\to$ $rarr$ $magnesium chloride + dihydrogen gas$ $"magnesium chloride + dihydrogen gas"$

Explanation:

Magnesium metal is oxidized to $M g^{2 +}$ $Mg^(2+)$ .

$M g (s) \to M g^{2 +} + 2 e^{-}$ $Mg(s) rarr Mg^(2+) + 2e^(-)$

Protium ion is REDUCED to dihydrogen gas:

$H^{+} + e^{-} \to \frac{1}{2} H_{2} (g)$ $H^+ + e^(-) rarr 1/2H_2(g)$

And thus the net ionic equation is, $M g (s) + 2 H^{+} \to M g^{2 +} + H_{2} (g) ↑ ⏐$ $Mg(s) + 2H^(+) rarr Mg^(2+) + H_2(g)uarr$

Overall:

$M g (s) + 2 H C l (a q) \to M g C l_{2} (a q) + H_{2} (g) ↑ ⏐$ $Mg(s) + 2HCl(aq) rarr MgCl_2(aq) + H_2(g)uarr$

Are all these equations balanced with respect to both MASS and CHARGE? If not they should be!

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How does magnesium react with hydrochloric acid?

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