Question

how many atoms of hydrogen (h) are in the compound?
phosphoric
acid
h_3po_4
1 atom
2 atoms
3 atoms

Explanation:

Step1: Analyze the chemical formula

The chemical formula of phosphoric acid is \(H_3PO_4\).

Step2: Identify the number of hydrogen atoms

In the formula \(H_3PO_4\), the subscript of \(H\) is 3. This subscript indicates the number of hydrogen atoms in one molecule of the compound. So, there are 3 hydrogen atoms.

Answer:

C. 3 atoms