Consider the reaction below. hf + h2o  h3o+ f- which is an acid-conjugate base pair? hf and h3o+ hf and f h2o and hf h2o and f

Water is an amphoteric compound. This means it could be a base or an acid, depending on the substance it is to be reacted with. In this case, water is a base because HF is an acid. Now, if the reactant is an acid, its form after the reaction is called the conjugate pair. Since HF became F⁻, the acid-conjugate base pair is: HF and F⁻.

The acid-conjugate base pair in the reaction is HF and F.

The conjugate acid refers to the specie that is formed when a base accepts a proton while a conjugate base is formed when an acid looses a proton. This is derived from the Brownstead - Lowry definition of acids.

For this reaction;

The acid is HF The conjugate base is F-

Therefore, the acid-conjugate base pair in the reaction is HF and F.

Learn more about conjugate acid: link

Rn in the right answer

The product formed when bao and h2o  react together is                        ba(oh)2that is  bao + h2o = ba(oh)21 mole of    bao    react  1 mole of h2o  to    form  1 mole  of ba(oh)2