Essential Chemistry for IGCSE - Making And Identifying Salts (Section 2 - No. 17)
What will you see if you use hydrochloric acid and magnesium?
The magnesium will dissolve and release hydrogen gas.
The magnesium will form a precipitate.
The solution will freeze.
The solution will turn blue.
Explanation
Magnesium reacts with hydrochloric acid to produce hydrogen gas.
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