It may be 4.8cm? Tell me if i’m wrong or right. I’m so sorry if it’s wrong.
It is 95% ethanol and 5%water
I’m pretty sure hope you get it right!
:)
Answer is: tin and zinc, because they standard potential as less than zero.
Tin and zinc are oxidized to tin and zinc cations (with +2 charge) and hydrogen anions are reduced to hydrogen molecules with neutral charge.
Zn → Zn²⁺ + 2e⁻; 2H⁺ + 2e⁻ → H₂.
<span>Oxidation is increase
of oxidation number and reduction is decrease
of oxidation number.</span>
