Write a balanced equation for the following, including physical states: Magnesium + Hydrochloric Acid > Magnesiumchloride + Hydrogen gas Mg + HCl > MgCl + H Is that it? I feel like I'm missing something.

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Answer 1 · 2015-10-02T04:30:00

$M g_{(s)} + 2 H C l_{(a q)} \to M g C l_{2 (a q)} + H_{2 (g)} ↑ ⏐$ $Mg_((s)) +2HCl_((aq)) rarr MgCl_(2(aq))+ H_(2(g)) uarr$

Some small details you missed are that magnesium chloride is $M g C l_{2}$ $MgCl_2$ and that hydrogen gas is $H_{2}$ $H_2$ .

So it should be:

$M g_{(s)} + H C l_{(a q)} \to M g C l_{2 (a q)} + H_{2 (g)} ↑ ⏐$ $Mg_((s)) + HCl_((aq)) rarr MgCl_(2(aq)) + H_(2(g)) uarr$

When you balance it, it will become:

$M g_{(s)} + 2 H C l_{(a q)} \to M g C l_{2 (a q)} + H_{2 (g)} ↑ ⏐$ $Mg_((s)) + 2HCl_((aq)) rarr MgCl_(2(aq)) + H_(2(g)) uarr$