An example of an intensive physical property is while an example of an extensive physical property is

An intensive property would be something like color. You could have 1 mol or 20 mols of something and the color would be the same. Think intense color like silver or gold. Another example is density. 1 mol of iron has the same density as 28 mol of iron.
An extensive property would be something like mass. How much mass you have will determine the extensive property of the material.

The answer is 3,5g co