Magnesium and calcium have similar chemical properties because they have the same number of electrons in their valence shells.
The correct option is C. The Kansas-Nebraska Act provided for the voters in the territory to decide whether they wanted Kansas to enter the Union as a slave state or a free state.
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What did the Kansas-Nebraska Act cause or lead to?</h3>
The controversial Kansas-Nebraska Act created the potential that slavery would be permitted in areas where it had previously been prohibited. Its adoption heightened the acrimonious debate over slavery in the US, which would later erupt into the Civil War.
The United States Congress approved the Kansas-Nebraska Act on May 30, 1854. It gave the inhabitants of the states of Kansas and Nebraska the freedom to choose whether or not to tolerate slavery within their borders. The Missouri Compromise of 1820, which forbade slavery north of latitude 36°30', was repealed by the Act.
Learn more about The Kansas-Nebraska Act here:
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The gap between the rich and the poor decreased
One of the main reason why more people didn't foresee the economic collapse of the 1930s is because it happened so quickly with no warning, since the US economy during the 1920s was incredibly strong and showed no signs of slowing.
