Give the steps to balance Redox reactions by Ion Electron Method (half reaction method).
Answers
Answer:
Step 1. Write down the unbalanced equation
Step 2. Separate the redox reaction into half-reactions
a) Assign oxidation numbers for each atom
b) Identify and write out all redox couples in reaction
c) Combine these redox couples into two half-reactions
Step 3. Balance the atoms in each half reaction
a) Balance all other atoms except H and O
b) Balance the oxygen atoms with H2O
c) Balance the hydrogen atoms with H+
d) In a basic medium, add one OH- to each side for every H+
Step 4. Balance the charge with e-
Step 5: Make electron gain equivalent to electron loss in the half-reactions
Step 6: Add the half-reactions together
Step 7: Simplify the equation
Finally, check that the elements and charges are balanced
Answer:
Simple Redox Reactions
Write the oxidation and reduction half-reactions for the species that is reduced or oxidized. Multiply the half-reactions by the appropriate number so that they have equal numbers of electrons. Add the two equations to cancel out the electrons. The equation should be balanced.
Explanation: