Hydrogen already is the proper name.
effervescent
Ethanol is the proper IUPAC name already!
Polytetrafluorethylene (PTFE)
Sulfur Triflouride
the proper name for itis a colt.
The proper name for the 'cello is the violoncello.
the proper name for itis a colt.
The official name of Haiti is the Republic of Haiti.
Boston is a proper noun, it is the name of a specific city.
Proper. It is a name of a city in Russia.
The name Myrtle is a proper noun, the name of a person.A proper noun is the name of a specific person, place, or thing.
iron ore is the proper name
The proper name of the Earth's moon is Luna.
Inner ear is a proper name.
The proper name for humans is Homo sapiens.
Yes, the name Penny is a proper noun because it is a specific name used to refer to a particular person or thing. It is capitalized when used as a name for someone.