Question

which of the following elements are in the compound: *
phosphoric
acid

potassium (k), calcium (ca), and oxygen (o)
hydrogen (h), phosphorus (p), and oxygen (o)
magnesium (mg), oxygen (o) and sulfur(s)

Explanation:

Step1: Analyze the formula \(H_3PO_4\)

The formula \(H_3PO_4\) indicates the elements present.

Step2: Identify elements from symbols

• \(H\) represents Hydrogen.
• \(P\) represents Phosphorus.
• \(O\) represents Oxygen.

So, the compound phosphoric acid (\(H_3PO_4\)) contains Hydrogen (H), Phosphorus (P), and Oxygen (O).

Answer:

B. Hydrogen (H), Phosphorus (P), and Oxygen (O)