Hydrocyanic acid (HCN) is a weak acid whose Ka = 4.9 x 10-10 . • What is the pH and the percent ionization of a solution whose initial concentration is 0.25 M? • At what concentration does HCN exhibit 0.05 percent ionization? g

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.

Answer ozone (o3) is made of three atoms of oxygen, it is a molecule;