Answer: In [tex]H_2[/tex] molecule, there are 2 atoms of hydrogen present.
Explanation:
Coefficients are defined as the numbers that are written in the front of atoms or molecules during a chemical reaction. They represent the number of moles of the substance present in a chemical reaction.
For Example: [tex]2H_2+O_2\rightarrow 2H_2O[/tex]
2 moles of hydrogen gas is reacting with 1 mole of oxygen gas to produce 2 moles of water molecule.
Subscript numbers are defined as the number of atoms of each element present in a compound.
For Example: In [tex]CO_2[/tex], 2 atoms of oxygen element is there and 1 atom of carbon element is there.
Superscript numbers are defined as the charges of ions reacting in a chemical reaction.
For Example: In [tex]Ca^{2+}[/tex], 2+ charge is present on calcium ion.
We are given:
A molecule of hydrogen which is [tex]H_2[/tex]
The number '2' is present in subscript, which represents the number of atoms in a molecule or a compound.
Hence, in [tex]H_2[/tex] molecule, there are 2 atoms of hydrogen present.
