Redox Equation Quiz

Name _______________________

Complete the following statements.

1. Oxidation is defined as:

2. Reduction is defined as:

3. If one particle gains e⁻, another particle must:

4. The oxidation number of a free element in an equation is:

5. The oxidation number of oxygen in a peroxide is:

7. The oxidation number of hydrogen in AlH₃ is:

8. You know a redox equation is balanced correctly when:

 

 

Use the half-reaction method to balance these two equations.

 
9.     H₃PO₃   +   Cr₂O₇ ⁻²     H₃PO₄  +   Cr ⁺³

 

 

 

 

 

 

 

 

 

 

10.     I₂   +   H₂SO₃   +   H₂O     I ⁻¹   +   HSO₄⁻¹   +   H ⁺¹