write solution cleary if handwritten..if possible NOT computer form. Thank you!
ID: 516106 • Letter: W
Question
write solution cleary if handwritten..if possible NOT computer form. Thank you!
A voltaic cell is constructed using the reaction Mg (s) + 2 H^+(aq) rightarrow Mg^2+(aq) + H_2 (g) Write equations for the oxidation and reduction half-reactions. Which half-reaction occurs in the anode compartment, and which occurs in the cathode compartment? Complete the following sentences: Electrons in the external circuit flow from the _____ electrode to the _____ electrode. Negative ions move in the salt bridge from the _____ half-cell to the _____ half-cell. The half-reaction at the anode is _____, and that at the cathode is _____.Explanation / Answer
a) oxidation half reaction
Mg(s) -------> Mg+2 (aq) + 2e-
reduction half reaction
2H+ +2e- ----------> H2(g)
b)anode is the electrode where oxidation occurs.
thus Mg/Mg+2 is anode
and H+/H2 is cathode
c) Electrons in the external circuit flow from Mg electrode to H electrode .
Negative ions move in the salt bridge from the H eelctrode to Mg electrode.
the half reaction at anode is oxidation and at cathode is reduction.
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