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H2 is a hydrogen molecule made of two hydrogen atoms bonded together.
The preceding two refers to the number of moles of H2 molecules in the chemical equation.
Wiki User
∙ 13y ago
Wiki User
∙ 11y ago(4 hydrogen Atoms and 2Oxygen)
2H2O stands for two water molecules or two molecules with 2 hydrogen atoms and one oxygen atom each.
Wiki User
∙ 12y agoThere are two atoms of hydrogen
Wiki User
∙ 12y agoDeuterium, an isotope of Hydrogen
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What is the chemical symbol again mean?
The chemical symbol is an abbreviation of the chemical name for a chemical element.
A number written to the left of a chemical symbol or formula is called?
In chemical symbol, number written on top-left (2H) is is the mass number, and on the bottom left (1H) is atomic number. In chemical symbol the number in the very left of formula is used for balancing chemical equation.
Chemical symbol for Hellium?
He. Helium is a noble gas, meaning it is inert and cannot bond with any other atom.
What does the chemical symbol HNO3 mean?
Nitric Acid
What does the state symbol (aq) mean when written after a chemical compound in a chemical reaction?
The state symbol aq means it dissolves in water when it is written after a chemical compound in a chemical reaction.
What is the chemical symbol again mean?
The chemical symbol is an abbreviation of the chemical name for a chemical element.
A number written to the left of a chemical symbol or formula is called?
In chemical symbol, number written on top-left (2H) is is the mass number, and on the bottom left (1H) is atomic number. In chemical symbol the number in the very left of formula is used for balancing chemical equation.
What is O the chemical symbol for?
if you mean what is the chemical with the symbol O it is oxygen if not i don't know
What does symbol mean on the periodic table mean?
The symbol on the periodic table means the abrevitation of the chemical element. For example, the chemical element symbol Pm stands for Promethium.
Chemical symbol for Hellium?
He. Helium is a noble gas, meaning it is inert and cannot bond with any other atom.
What is the symbol for O?
if you mean what is the chemical with the symbol O it is oxygen if not i don't know
What does the state symbol mean when written after a chemical compound in a chemical reaction?
The state symbol aq means it dissolves in water when it is written after a chemical compound in a chemical reaction.
What does the chemical symbol for Li mean?
lithium is Li
What does the chemical symbol HNO3 mean?
Nitric Acid
How do you abbreviate iron?
If you mean its chemical symbol, that is Fe.
What does the state symbol (aq) mean when written after a chemical compound in a chemical reaction?
The state symbol aq means it dissolves in water when it is written after a chemical compound in a chemical reaction.
What is the meaning of the chemical symbol for titanium?
The chemical symbol for Titanium is Ti. What it might mean is, I'm afraid, a mystery lost to the ages.
