Question

hydrofluoric acid
express your answer as a chemical formula.

a chemical reaction does not occur for this question.
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part b
hydrobromic acid
express your answer as a chemical formula.

a chemical reaction does not occur for this question.

Explanation:

Part A: Hydrofluoric Acid

Step1: Identify ions

Hydrofluoric acid is an acid with $H^+$ and $F^-$ ions.

Step2: Combine ions

To form a neutral compound, one $H^+$ (charge +1) and one $F^-$ (charge -1) combine. So the formula is $HF$.

Step1: Identify ions

Hydrobromic acid has $H^+$ and $Br^-$ ions.

Step2: Combine ions

One $H^+$ (+1 charge) and one $Br^-$ (-1 charge) combine to form a neutral compound. The formula is $HBr$.

Answer:

$HF$

Part B: Hydrobromic Acid