Hydrogen as a gas, plasma, or liquid is still an element.
Oxygen is a chemical element.
H2 or hydrogen gas is neither a mixture nor a compound. It is an element because it is only made up of one element which is hydrogen.
Hydrochloric acid is a mixture, generally HCl + water.Note that in English HCl (pure, as a gas) is called hydrogen chloride.
Neither, it is a mixture of a variety of compounds.
The color is NEVER an analytic tool for distinguishing between element, elemental mixture, compound or compound mixture. However there are not many brown coloured gas compounds or elements.
Element.
Argon gas is an element. It will be element only. It can be part of some mixture. But never ever be a part of the compound. It is a noble gas.
Yes, hydrogen gas is a compound. It is made up of molecules which consist of two atoms of hydrogen, an element. It just happens that the same name is used for the gas as for the element.
Methane is a chemical compound with the formula CH4. It consists of the elements carbon and hydrogen chemically bonded together, and is not a mixture.
Argon gas is an element. It will be element only. It can be part of some mixture. But never ever be a part of the compound. It is a noble gas.
Element.
Hydrogen is known as a element and a compound. Hydrogen is a light element with one proton and a gas compound with two hydrogen atoms.
IT IS A MIXTURE =] dumbo!
Ar is the chemical symbol for the element argon. It is a noble gas and a pure element, not a compound or mixture.
Hydrogen is a chemical element, gas at room temperature, having a diatomic molecule.
No. It is a compound made of the elements oxygen and hydrogen: H2O.
No. Hydrogen gas is an element, making it a pure substance.