According to the Missouri Compromise of 1820:     the remaining Louisiana Purchase territory was divided into slave and free zones     Congress banned slavery in any new territory that might ever be added to the United States     Missouri agreed to gradual emancipation of slavery in exchange for admission to the Union     all of the above

the remaining Louisiana Purchase territory was divided into slave and free zones

Congress banned slavery in any new territory that might ever be added to the United States

Missouri agreed to gradual emancipation of slavery in exchange for admission to the Union

all of the above