Question

For the following balanced equation: 2 Ag+ (aq) + Cu(s) Cu2+ (aq) + 2 Ag(s)

Which letter corresponds to the correct cell notation at standard state conditions?


A. 2Ag+(aq) Cu2+(aq) 2Ag(s) Cu(s)
B. Cu(s) Cu2+(aq) Ag+(aq) Ag(s)
C. Ag+(aq) Cu2+(aq) Cu(s) Ag(s)
D. Cu2+(aq) Cu(s) Ag(s) Ag+(aq)
E. Cu(s) Cu2+(aq) 2Ag+(aq) 2Ag(s)

What reaction is occurring at the anode?


A. Cu Cu2+ + 2e–
B. Cu2+ + 2e– Cu
C. Ag+ + e– Ag
D. Ag Ag+ + e–


I think it's B, A but I'm not sure

Answer 1

Jessie, you have no arrows. How do you know the reactants from the products? Second, the correct answer is not listed for number one. You must space the active phases with a | mark.
Your answers of B and A are correct if you place the arrow and the | at the correct place(s).

Answer 2

I didn't know how to type those in, but I got it. Thanks!

Answer 3

I've seen arrows done three ways.
>> or the reverse of <<.
With the dash and greater than sign as in --> or <--.
I use the equal sign and the greater than sign as in ==> or <== and if I want to show --> and <-- so show equilibrium, I can write it as <--> or <<>> or <==>.