2. En una encuesta realizada a 150 personasacerca de su preferencia por las emisoras de radio se obtuvo la siguienteinformación:
- 52 escuchan radio Ritmo
-48 escuchan radio Miraflores
- 37 escuchan radio Moda
- 15 escuchan radio Ritmo y Miraflores
- 14 escuchan radio Moda y Miraflores
- 13 escuchan radio Ritmo y Moda
- 8 escuchan las tres radios mencionadas
Cuántas personas escuchan radio ritmo
Dero no radio moda?
a) 39 b) 40 c) 4i d) 42 ei 43​

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).

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72