Representar, usando la notación zAx, a los siguientes átomos o iones, cuya composición se indica y además escriba cuáles son neutros, cationes o aniones 1) Fósforo, que tiene 15 protones, 15 electrones y 16 neutrones ………………. 2) Cloro, que tiene número másico igual a 37 y contiene 20 neutrones y 18 electrones …………………. 3) Plomo, que contiene número másico=207 y contiene 125 neutrones ……………. 4) Manganeso, cuyo número másico=55, contiene 25 protones y cedió 4 electrones ……

answer; /// i do believe that the correct answer is (c)nuclear bond

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !