Question

in the formula for water (h₂o), what does the subscript 2 indicate?
○ two oxygen atoms in the compound
○ two atoms in the compound
○ two hydrogen atoms in the compound
○ two molecules in water

Explanation:

In a chemical formula, subscripts indicate the number of atoms of the element they follow. In \(H_2O\), \(H\) represents hydrogen. So the subscript 2 indicates the number of hydrogen atoms.

Answer:

two hydrogen atoms in the compound