Pure chemistry: gain knowledge for own pleasure
Applied chemistry: gain knowledge to know how to use it
In a reduction-oxidation or better known as REDOX reaction, the substance that reduces the oxidation state is known as the substance that is REDUCED. It serves as the oxidizing agent. Thus, Au3+ in this number is considered as the oxidizing agent.
D. Dependent on an objects position
a tick attaches itself to the skin of a dog