Balance Redox Equations

Practice for Redox Reactions

Write the formula and then assign oxidation numbers for the following ions:

  1. nitrate
  2. sulfate
  3. chromate
  4. bromide
  5. oxide
  6. phosphate
  7. nitrite
  8. perchlorate
  9. bromate
  10. hypofluorite
  11. iodite

For the following reaction:

2 Fe2O3(s) + 3C (s) ——> 4Fe(s) + 3CO2(g)

  1. What is oxidized?
  2. What is reduced?
  3. What is the reducing agent?
  4. What is the oxidizing agent?

For the following reaction:

C7H16 + O2 ——> CO2 + H2O

  1. Balance the reaction.
  2. What is oxidized?
  3. What is reduced?
  4. What is the reducing agent?
  5. What is the oxidizing agent?

Balance the following reactions

Copper(II) ions react with Nickel metal to form copper metal and nickel(II) ions
Tin (IV) ions react with Iron metal to form Iron(II) ions and Tin metal
Cobalt metal reacts with Lead(II) ions to form Lead metal and Cobalt(II) ions
Lithium metal reacts with Zinc(II) ions to form Lithium ions and Zinc metal

Challenge! Why don't these reactions occur?

(Look in your book to learn why.)
Ni+2 + Cu(s) —> no reaction
Iron+2 + Sn(s) —>no reaction

What is the most important redox reaction in your life?

Explain why it is important to you?
You do not need to balance it, yet….


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