For the reaction 2 NaOH + H 2 SO 4 ⟶ Na 2 SO 4 + 2 H 2 O how many grams of sulfuric acid, H2SO4, are needed to react completely with 40.3 g of sodium hydroxide, NaOH?

b.final

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).