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Discussion. Magnesium reacts with hydrochloric acid according to the equation: Mg (s) + 2 HCl (aq MgCl 2 (aq) + H 2 (g) This demonstration can be used to illustrate the characteristic reaction of metals with acid, a single replacement reaction, or to demonstrate the generation of hydrogen gas.lace the Petri dish on the overhead projector. Pour hydrochloric acid into the Petri dish to a depth of about 5mm. Turn on the projector and focus it. Using forceps, place the magnesium ribbon into the Petri dish.
Best Answer: Question #3: What is produced when an acid reacts with a base? An example of such a reaction is the following: NaOH(aq) + HCl â NaCl(aq) + HOH(l) The base (NaOH) donates the hydroxide (OH^-) ion, and the acid (HCl), donates the hydrogen ion (H+).n example of such a reaction is the following: NaOH(aq) + HCl â NaCl(aq) + HOH(l) The base (NaOH) donates the hydroxide (OH^-) ion, and the acid (HCl), donates the hydrogen ion (H+).