You Do Need power plug adapter while traveling from Argentina to Iraq.

Here is Why You Need An Adapter

The outlet and plug type used in Iraq are C, D and G and in Argentina are C and I. This is how they look like.

Argentina

In Argentina, outlets of type C and I are in use.

Type C

Type I

Iraq

In Iraq, outlets of type C, D and G are in use.

Type C

Type D

Type G