Somewhere special!
The chemical name of hydrogen in the English language is...hydrogen. Of course, other spellings and names in other languages.
The correct name for HCl is hydrogen chloride because it is a binary molecule composed of hydrogen and chlorine atoms. The use of terms like "hydrogen mono-chloride" is not accurate in the context of binary molecules.
Hydrogen already is the proper name.
In the Greek language, "hydrogen" means "water former" because...well, set it on fire and that's what you get.
Hydrogen, symbol: HHydrogen is just simply hydrogen (H)
H2O2 is a common name for hydrogen dioxide
Yes, the name and spelling for hydrogen are generally consistent across languages since it is an element with a universally recognized name in the periodic table. However, the pronunciation may vary depending on the language's phonetic rules.
The Latin name for hydrogen is "hydrogenium."
The compound name for hydrogen and phosphorus is hydrogen phosphide, also known as phosphine (PH3).
The common name for hydrogen monoxide is water.
The scientific name for hydrogen peroxide is H2O2.
The correct name (after IUPAC rules) is just hydrogen cyanide.