6.4.2 Defining Reduction (Demo)
Remember that redox reaction.and occur in a
The word redox is “created” from the words reduction and oxidation. Redox shows that oxidation and reduction always take place together.
Take a look at the reaction between copper(II) oxide and hydrogen:
You will notice that H2 gains oxygen to become H2O. Of course, the process is oxidation.
Now observe the CuO and Cu part of the equation;
Copper(II) oxide, CuO loses oxygen to form copper, Cu.