Question

A chemical change in which an element or compound unites with oxygen is called​

Answer 1

Answer:

oxidation . this is also known as addition of oxygen

Answer 2

A chemical change in which an element or compound unites with oxygen is called​ oxidation.

Explanation:

A chemical change in which an element or compound unites with oxygen is called​ oxidation.

There are two types of reaction:

• Oxidation is gain of oxygen.
• Reduction is loss of oxygen.

For example, in the extraction of iron from its ore:

Fe2O3  + 3CO ------> 2 Fe + 3 CO2

In this example Oxygen unites with CO2 there is is called oxidation of CO2.