At 5.0 C the value of Kw for the equilibrium shown above is 1.9 X 10^-15 and the value of pKw is 14.73 . Based on this information , which of the following is correct for pure water at this temperature?

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

c. electrical charges of ionic bonds.