First question I believe is B
The second one is also B
I really hope it helped
That all angles are the same in degress
Answer:
Every redox reaction equation contains two or more atoms (usually from different elements) changing their oxidation state (number) through a transfer of one or more electrons. The simultaneous processes of oxidation and reduction are exactly balanced, such that electrons do not appear in the overall equation. You can assign oxidation states to atoms on their own or in chemical compounds based on certain rules.
To confirm that this is a redox reaction, we must assign oxidation...