Mg(oh)2 is a sparingly soluble salt with a solubility product, ksp, of 5.61×10−11. it is used to control the ph and provide nutrients in the biological (microbial) treatment of municipal wastewater streams. what is the ratio of solubility of mg(oh)2 dissolved in pure h2o to mg(oh)2 dissolved in a 0.180 m naoh solution? express your answer numerically as the ratio of molar solubility in h2o to the molar solubility in naoh.

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.