Reaction with Hydrochloric Acid

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HCL

MAGNESIUM
Mg(s) + 2HCl(aq) ---> MgCl2(aq) + H2(g)

magnesium is a highly reactive metal hence, reacts very fast; lots of bubbles produced; on testing with a lighted splinter a pop sound was produced hence the gas produced is hydrogen. magnesium chloride solution is produced.

Since heat energy is given out, the reaction is a exothermic reaction.

ALUMINUM
It can be happened because the reactivity of Al can move H+ ion from HCl. Theoretically, the energy that needed to oxidize Al less than to oxidize H+ from HCl. So the reaction can be happened spontaneously (without any catalyst). It can be looked from Volta energy arrangement.

IRON
The hydrochloric acid will 'dissolve' iron. They both will react form hydrogen gas, and aqueous iron(II)chloride, which is pale green is colour. If the solution is left to stand, the soultion will turn pale brown, due to the oxidation of iron(II) ions (Fe2+) to iron(III) ions (Fe3+)

COPPER
There is usually no reaction, because copper is below hydrogen in the electromotive series and therefore does not displace hydrogen from its compounds, and HCl is a nonoxidizing acid.

ZINC
if this answers your question HCl Zn is hydrogen, cloride and zinc.  Or: Zn + 2HCl -> ZnCl2 + H2
HCl is also known hydrochloric acid. It reacts with zinc to produce Zinc Chloride (a white crystalline solid) and hydrogen gas. Zinc is also known as 'Zn'

lump
H2SO4

Aluminum
As aluminium is a reactive metal, it will oxidise in air to form a hard coating of aluminium oxide which surrounds the metal. To observe the reaction of sulphuric acid and aluminium, this coating must first be specially removed. Effervescence will be observed, and hydrogen gas will be produced.

aluminium + sulphuric acid (reacts to form) aluminium sulphate + hydrogen gas

Copper
Yes, hydrogen will make bubbles. 
No. There is no hydrogen produced in this reaction. When concentrated H2SO4 is used, there is some SO2 gas produced but there is no...
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