What were the two most common outcomes of states experiencing major protests, arab spring.

Regime change and power vacuums opened up across the Arab world.

Explanation:

In many Arab countries for example Egypt, they demanded that the president of Egypt Hosni Mubarak step down, the Mubarak government was overthrown and a new establishment was implemented.

Power vacuums that were created in Libya were one of the any reasons why the nation is engulfed into a brutal civil war, other protests in Jordan, Kuwait, and Oman were not as bad.

Some nations like Jordan introduced a new democratic piece of their government.