4.-Se prepara una solución a partir de 500 ml de agua y 40 g de sal, calcular la concentración de la solución en % m/m y %m/v. δ= 1,02 g/ml
y explicar porque lo hacen que lo tengo que defender en un oral

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).