<>"On addition to water the Na+ section of NaCl is attracted to the oxygen side of the water molecules, while the Cl- side is attracted to the hydrogens' side of the water molecule. This causes the sodium chloride to split in water, and the NaCl dissolves into separate Na+ and Cl- atoms."<>
I know 4 is acidic so it has to be 9
Hey There!
Moles of solution = 7.0 moles
Volume in liters:
569 mL / 1000 => 0.569 L
Therefore:
M = n / V
M = 7.0 / 0.569
= 12.30 M
Hope that helps!
Oxidation-reactions are equations where some species release electrons and other species gain electron.
So two reactions happen simultaneously the oxidation of one species and the reduction off the other species.
In the oxidations, the species release electrons and, consequently, increase their oxidation number.
In the reductions, the species gain electrons and, consequently, decrease their oxidation number.
This last reaction, reduction, is what the above equation represents: Sn 4+ is gaining 2 electrons and so its oxidation number decrease from 4+ to 2+.
In, conclusion that is a reduction equation (option d)
