Well that is somewhat loaded it is pure in and of itself, it can be impure but it can be pure. Adding other gasses to it (its a gas at room temp when not dissolved in water to make the acid) would make it impure. Adding things to the acid which do not react could also be seen as impurities.
Bear in mind there is no way to make the actual molecule impure by say making HOCl because this is no longer HCl but a different compound (hypochloric acid)
HCl is a pure substance because it is a compound. Pure substances consist of elements and compounds.
It's a compound - of Hydrogen and Chlorine.
No, although it ionizes in water it is composed of diatomic molecules in its pure form.
Hydrogen is a pure substance because it is an element
HCl gas is a compound.
Hydrochloric acid is a mixture, generally HCl + water.Note that in English HCl (pure, as a gas) is called hydrogen chloride.
"L" is not a recognized element, but HCl is indeed a compound.
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The covalent compound HCl is called hydrochloric acid.
HCl is a compound, C, O, Hg are elements
Hydrochloric acid (HCl) is considered a primary standard because it is a highly pure compound that can be used directly to prepare standard solutions for titrations and other analytical procedures without the need for standardization.
HCl is not a metal, it is a compound. That compound too, does not have any mettalic characteristics.