What are the free moving charged particles in a Carbon electrode made of electrode

Determine the reaction and balance the following equations urgent due in the morning

Tell me the iupac names of the following alcohols:

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products