Why would Missouri petitioning to answer as a slave state cause a problem?

The Missouri territory had been part of the Louisiana Purchase and was the ... Admitting Missouri as a slave state also threatened the tenuous balance ... Why did the Missouri Crisis trigger threats of disunion and war?

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow