The amount of energy released by the combustion of a given fuel is the result of the subtracting the energy required to break the bonds of the reactants from the energy released by the formation of bonds in the products.
Kansas Nebraska Act. This Act set up Kansas and Nebraska as states. Each state would use popular sovereignty to decide what to do about slavery. People who were pro-slavery and antislavery moved to Kansas, but some antislavery settlers were against the Act.
Upon the Kansas-Nebraska Act's enactment in May of 1854 it was already highly controversial and condemned by the Northern States. It was considered a complete affront to the Missouri Compromise of 1820 and was considered a betrayal by their own Senator.