Final answer:
If Missouri had joined the Union as a slave state, it would have shifted the balance of power in Congress.
Step-by-step explanation:
If Missouri had joined the Union as a slave state, it would have shifted the balance of power in Congress.
At that time, there were 11 free states and 11 slave states. Adding Missouri as a slave state would have upset this balance.
There would have been an increase in the number of slave states compared to free states, potentially leading to more pro-slavery legislation and greater influence of pro-slavery politicians in Congress.
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