<span>When chemical reactions take place, chemical bonds are broken in the reactants and new chemical bonds are formed in the products. It is as a result of these processes that a reaction is overall exothermic (energy is given out to the surroundigs) or overall endothermic (energy is absorbed from the surroundings hopefully this helped :)</span>
Grams to moles to atoms
(41.6)g/(1 )×(1mol)/(87)g×(6.022×10^23)atoms/(1mol)
the 87 comes from the periodic table Sr has 87 as atomic weight
grams cancel then moles cancel and you are left with atoms
=2.87×10^23atoms
with all numbers it is 2.8794851×10^23atoms
Mass-mass, volume-volume, mass-volume, and mole-mole
Answer:
It is called tempering. Its tensile strength may reduce but it will become more rigid and hard to break compared to the original metal.
Explanation:
( Source : Quora )
S²⁻ cannot be reduced further.
<u>Explanation:</u>
S²⁻ cannot be reduced further
In the periodic table, Sulphur has the atomic number of 16.
So, the arrangement of electrons in the orbits would be 2, 8, 6
The outermost orbit has 6 electrons.
It can gain two more electrons to complete its outermost orbit and the valency of the sulphur then becomes 2-
Therefore, in S²⁻ the valence electrons are complete in the outermost orbit and cannot gain more electrons. Therefore, it cannot get reduced further.