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The symbol for atomic hydrogen is H. But hydrogen as a gas molecule consists of two hydrogen atoms, so the formula for molecular hydrogen is H2.

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Q: Why does hydrogen gas have the symbol H2?
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Related questions

Which chemical symbol is used to represent gas helium?

The symbol for hydrogen gas is H2


How is hydrogen abbreviated?

The chemical symbol for hydrogen is H. Hydrogen gas is H2.


What is the formula for hydrogen molecule?

Hydrogen is a diatomic element, so the formula would be H2.The chemical symbol is H, but hydrogen usually appears as H2.


What does h h H2 in science?

H is the atomic symbol for hydrogen. H2 is the chemical formula for the hydrogen molecule, which is the most common and stable form of hydrogen gas.


Is H2 hydrogen?

"H" is the chemical symbol for Hydrogen. "H2" is the symbol for a molecule that contains two atoms of hydrogen. Under normal conditions in the Earth's atmosphere, hydrogen gas is usually found in the form of molecules consisting of two atoms.


What is the chemical formula for gas?

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Formula for hydrogen?

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What is the formula of H2?

H2S is the formula of Hydrogen sulfide.


What is the symbol and element name for hydrogen?

H2 hydrogen


What is the ion electron equation showing the formation of hydrogen gas?

A chemical equation, like all equations, contains an equals sign ( = ). It shows a chemical reaction, where something turns into something else. You probably mean the chemical symbol that would represent hydrogen. The symbol for an atom of hydrogen is H. In hydrogen gas the atoms usually pair up into hydrogen molecules for which the symbol is H2. If the gas is very hot the molecules dis-associate, so then the symbol will be just H, or sometimes (H) to make it clear that monatomic hydrogen is referred to. If you want an equation : H2 + heat = 2 (H)


Formula hydrogen gas?

Its H2


What is the substance with the symbol H2?

Hydrogen