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"3. Write the two half-reactions that occur in this electroplating process. Be sure to include the states of the elements or ions." I did an experiment where we used a 6v battery to make a electrolytic cell. We used copper and a coin. I am wondering how do I do this.
what kind of coin? a penny, a nickel, a silver dollar, a golden coin? depends of the nature of the coin the half reaction can be different
it was a nickle
OK then you have one of the half reaction is Cu loosing/ gaining electrons and the other is going to be Ni loosing or gaining electrons
But how do I write a half reaction?
do you have a reduction potential table like this one? find the two half reactions for Cu and Ni in this table , the equation here in the table are written as reduction with the electrons as reactants.
guide me through this please
do you have the table?
I found the Cu(s)
I wasnt provided one but i have the one you just linked me
ok the Ni is 4 reactions below
what does this table represent anyways?
That is a list of selected reduction half-reactions sorted by the reduction potential E from higher + to lower - . The value 0 is for the arbitrarily assigned hydrogen electrode. You can find tables more extensive with more half reaction. In the reactions the left side of the arrow are the reactants with the electrons and after the arrow in the right side of the arrow the product or reduced form of the reactant. So for your work, you have to copy that two reaction Cu and Ni with the (aq) and (s) They haven't ask you about the potential so don't worry about that number all the way in the right.
the second part of the question asked me to include states of elements or ions. What does that mean?
wikipedia has a more complete table https://en.wikipedia.org/wiki/Standard_electrode_potential_(data_page)
That are the (s) = solid, (aq) = aqueous, (l)= liquid , (g)= gas
Sweet! I appreciate it dude
no prob anytime!!