Just about any acid will evolve hydrogen gas from a metal. The general formula for this is: HA + M --> MA + H2, where A is the anion, M is the metal, and MA is the salt produced.
By definition metals above hydrogen should react with acids to produce hydrogen and a metal salt when mixed, but carbonic acid is a weak acid and it won't react as much like sulfuric acid.
hydrogen gas is liberated when an acid reacts with a metal.The equation is as follows acid + metal=salt + h2
because some metals are less reactive than hydrogen.
If a gas is produced it is hydrogen (H2)2H+(from acid) + 2e-(from metal) --> H2
YES METALS DISPLACES HYDROGEN FROM ACID FOR EX- Zn+H2SO4----->ZnSO4 + H2
Aluminum is a silvery metal that will evolve hydrogen gas when reacted with a strong acid. Aluminum will also evolve hydrogen gas as a product of its reaction with a strong acid.
Nitric acid is a strong oxidizing agent and its molecule is unstable as compare to nitrogen oxides, on reacting with metals it gives hydrogen and oxygen both so water is produced instead of hydrogen.
This may due to Magnesium metal has high reactivity and concentration of nitric acid is dilute, thus magnesium reacts with H+ in water/ in nitric acid to give hydrogen
Hydrogen
If the acid is hydrochloric acid, then the gas is hydrogen.
Hydrogen. Acid plus metal is always hydrogen.
By definition metals above hydrogen should react with acids to produce hydrogen and a metal salt when mixed, but carbonic acid is a weak acid and it won't react as much like sulfuric acid.
reactive metals
Hydrogen will be liberated.
Hydrogen gas is evolved when acids act on certain metals. For example, when hydrochloric acid acts on sodium, sodium chloride is formed as hydrogen gas escapes.
Hydrogen gas is liberated when metals react with acid. The explanation lies in the fact that the the presence of hydrogen in a substance makes it acidic. so, every acid will contain Hydrogen. When metals reach with an acid, they form their respective salts according to the acid and always liberate hydrogen from that acid. If the acid is H2SO4, then the salt will sulfate of whichever metal reacts with the acid. If the acid is HCl, then the product would be metal chloride.
hydrogen gas evolved