Hidroxido manganico ecuacion e igualacion

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest