Hydrochloric acid is formed by disolving HCl (a gas) into water. Sulfuric acid is formed by disolving H2SO4 (a liquid) in water. Pure H2SO4 is a clear syrupy liquid that absorbs any water in the air and gives off a smokey looking vapor if it is exposed to the air, but it isn't a gas, consequently sulfuric acid is not prone to off gassing unless you get it very hot.
Hydrochloric acid evaporates off of potassium sulfate when it's produced. This results because potassium chloride is combined with sulfuric acid to create potassium sulfate.
hydrogen
Hydrogen gas
CO2
hydrogen
Hydrochloric acid evaporates off of potassium sulfate when it's produced. This results because potassium chloride is combined with sulfuric acid to create potassium sulfate.
hydrogen
Hydrogen gas
Chlorine gas (Cl2)
Hydrogen
hydrogen
CO2
hydrogen
Hydrogen gas (H2). Zn + 2H+ -> Zn(2+) + H2(gas)
No acid is formed. The reaction produces hydrogen gas and magnesium chloride, a salt.
NaCl salt is formed and H2 gas is given off
Hydrogen sulfide (H2S) is released.