Here's a breakdown:
* Example: H₂O (water)
* The subscript "2" after the "H" indicates that there are two hydrogen atoms in each molecule of water.
* The lack of a subscript after the "O" implies that there is one oxygen atom in each molecule.
Important points:
* Subscripts only apply to the element directly preceding them.
* If a subscript is "1", it is usually omitted for simplicity.
* Subscripts are crucial for understanding the composition and properties of chemical compounds.
Let me know if you'd like more examples or clarification!
