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.
The provision in the Kansas-Nebraska Act calling for popular sovereignty, the idea that residents of the new territories would vote on the issue of slavery, soon caused major problems. Forces on both sides of the issue began arriving in Kansas, and outbreaks of violence resulted.