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It is b or a check with someone else
Answer:
0.34
Explanation:
Cu>>>Cu2+(oxidation number increases)[Oxidation occurs]
Ag+>>>Ag(Oxidation number decreases) [Reduction occurs]
E°=0.80-0.46
=0.34V
When your substance either; change color, start to smell, explode, form bubbles, precipitate, and/or get hotter or colder.
