The oxidizing agent is the one that is reduced in the reaction. In this reaction, the charge of Cu falls from +2 to zero charge (neutral atom in the right side). Hence, CuO is the oxidizing agent. The reducing agent, the one being oxidized is carbon from zero charge to +4. The answer is CuO.
The outer shell electrons are only involved in the bonding process since they are the only 'incomplete' shell and it needs to be fulfilled by another element.
Cattle contribute to more carbon emissions than all of the worlds transport.
Catalysts speed up a reaction so it would be the reaction rate increases.
Answer:
Less than 7 ph value are acidic. Greater than 7 ph value are basic.