How many moles of sodium sulfate are present in .100 g of the compound? 2.126 x 10^-3 mol
174.3 mol
7.040 x 10^-4 mol

c. 75.7

i think that is the right

i believe that it is a exoplanet

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).