The pH of a weak acid solution, HA, is 2.352. Calculate the pka of the weak acid.

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

Which tool is least in predicting weather