give the chemical formulas for each of these acids. hydrofluoric acid: perchloric acid: phosphorous acid:

Explanation:

Step1: Recall hydrofluoric acid formula

Hydrofluoric acid is composed of hydrogen and fluorine, with a 1:1 ratio. So the formula is HF.

Step2: Recall perchloric acid formula

Perchloric acid contains hydrogen, chlorine and oxygen. The formula is HClO₄.

Step3: Recall phosphorous acid formula

Phosphorous acid has hydrogen, phosphorus and oxygen. Its formula is H₃PO₃.

Answer:

hydrofluoric acid: HF perchloric acid: HClO₄ phosphorous acid: H₃PO₃