Zn (s) -> Zn+2 (aq) + 2e-
Zn (s) with a neutral charge is oxidized and looses two electrons in the process to form ZnCl2 (aq) where Zn has a charge of 2+.
I’m not really sure what the qn is asking for but if i’m not wrong it should be ‘1’ for each blank!
Answer:
1) Constructive Interference
2) Hits a surface and bounces back
3) Antinodes
One kilogram is the answer