Answer:
They all set boundaries and were an attempt to release tension between slave and free States.
Explanation:
The Missouri Compromise was legislation passed after its request to become a slave State. By doing that the balance in the Congress between pro-slavery and anti-slavery was threatened. To avoid that the Congress did the Missouri Compromise in which besides admitting Missouri as a slave State they also admitted Maine as a free State and set a boundary between free states and slave states.
The compromise of 1850 was a group of five bills that were about the new territories acquired after the Mexican-American War, it set boundaries to Texas and admit California as a free state. It also let to the people´s decision about what the territories of Utah and New Mexico would do with slavery.
Finally, Bleeding Kansas was a group of violent confrontations within the territory that, then would become Kansas. The confrontations emerged after the discussion of whether to be a slave state or a free state. As in Utah and New Mexico, the decision was let to popular sovereignty.
As we can see all of the events stated in the question have in common that they are debates about slavery and they were made to try to avoid the Civil War.
I hope this answer helps you.
