answersLogoWhite

0

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.

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

What is the balanced symbol equation for making water?

The balanced symbol equation for making water is: 2H₂ + O₂ → 2H₂O.


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


Chemical symbol for Hellium?

He. Helium is a noble gas, meaning it is inert and cannot bond with any other atom.


A number written to the left of a chemical symbol or formula is called?

The MOLAR RATIO or Coefficient. Do NOT confuse with numbers AFTER the chemical symbols. e.g. 2NaOH + H2SO4 = Na2SO4 + 2H2O The Molar Ratios (Coefficients) are in order from left to right ' 2:1 :: 1:2 '. In Na2SO4 the numbers '2' refers to TWO sodium atoms And '4' refers to FOUR oxygen atoms. In '2H2O'. The left hand '2' refers to TWO molar ratios. The '2' to the right of 'H' (Hydrogen) refers to each molecule having two (2) hydrogen atoms. NB When no number is shown, read it as '1'(one). This applies to molar ratios and to atom numbers in a molecule. e.g. NaOH ; No numbers, so there is only ONE of each atom. Similarly, H2O means only ONE(1) atom of oxygen, in the molecule.


What is the chemical symbol of silicicon?

No such element as 'silicicon'. If you mean 'silicon' , then its chemical symbol is 'Si'.


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 AU mean in the periodic table?

AU is the chemical symbol for gold on the periodic table.


What is the chemical symbol again mean?

A chemical symbol is a shorthand way to represent an element. It consists of one or two letters that help identify the element in the periodic table and chemical formulas. For example, the chemical symbol for oxygen is "O" and for gold is "Au."


How do you abbreviate iron?

If you mean its chemical symbol, that is Fe.


What does the chemical symbol for Li mean?

lithium is Li


Symbol of citric acid?

Do you mean formula