hydrogen, oxygen, nitrogen, carbon, sulfur, iron, calcium, iodine, selenium, chlorine, potassium, phosphorous, etc.
See the link bellow.
Ammonia has the chemical formula NH3; therefore, the elements contained in it are nitrogen and hydrogen.
Carbon, hydrogen, and oxygen.
nitrogen and oxygen
There are many elements that are contained in seawater. Some examples include magnesium, sulfur, selenium, silicon, fluorine, sodium, and chlorine.
there are no specific elements that can be mentioned here
Hydrogen and Oxygen
the answer is complement
Formaldahyde
The book Elements contained axiomic proofs for plane geometry.
carbon, hydrogen, and oxygen.
Potassium, phosphorus, and oxygen.
its false no cap