NH3 is a base that ionized to give you NH4+ and OH- (Kb=1.8 x 10-5). You add MgSO4 to the ammonia solution. Calculate the concentration of the Mg2+ion concentration when Mg(OH)2 just begins to precipitate from the 0.10M NH3 solution. The Ksp for Mg(OH)2 is 1.8x10-11.

How many neutrons does a atom of cobalt have?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

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.