Drop names on green rectangles
Drop formulae on blue rectangles.
Ensure each snaps into place (it will change colour).
Balance the equation.
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| magnesium | + | hydrochloric |  |
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+ |
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| acid |
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+ |
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+ |
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magnesium
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MgCl2
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Mg
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hydrogen |
 |
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H2O
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chloride
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H2 |
HCl |
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MgCl2 |
MgCl
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H |
water |
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