Thursday, March 19, 2020

Post Civil War Times essays

Post Civil War Times essays After the Civil War, many settlers from the East moved west, the new frontier during the 1860-1890 period. Among those settlers were farmers, miners, railroad builders, and cattlemen who all wanted the rich, vast lands of the West. The movement west occurred because of the following reasons: the railroad companies wanted land to establish railways from the East to the West, farmers felt that the Western land would make them rich, miners wanted the land for the rich silver, gold, and other minerals, and cattlemen wanted to establish the profitable "cattle business" by using the long drive method. The Whites wanted this land no matter what, and they refused to let anything stand in the way of their goals. This led to Indians facing drastic consequences which impacted their way of life, Indian Wars, and the policy of Americanization. The Whites wanted to drive the Indians out of their own lands, and they accomplished this through several ways. One was the destruction of the buffalo, the staff of life for the Indians. The Whites' purposes for exterminating the buffalo were to stall railroad construction, kill for their hides, certain body parts, and/or just for the pure enjoyment of killing these beasts. The Indians needed the buffalo since it provided food, shelter, clothing, weapons, and religious rituals. With most of the buffalo dead, the Indians lacked the necessities of life. Therefore there was a decline of the Indian population. Another way was the diseases of the White man. Indians weren't resistant to these diseases like small pox; therefore, it also contributed to the decline of the Indian's population. Another brutal way was by form of violence. The Whites used Calvary or the ARMY to control the Indians. They also used the revolver, the "six-shooter," something that the Indians didn't have in order t o defend themselves. The factor of violence led to the Indian Wars, which took place during the 1860s-1890s. The first ba...

Tuesday, March 3, 2020

Oxidation and Reduction Reaction Example Problem

Oxidation and Reduction Reaction Example Problem In an oxidation-reduction or redox reaction, it is often confusing to identify which molecule is oxidized in the reaction and which molecule is reduced. This example problem shows how to correctly identify which atoms undergo oxidation or reduction and their corresponding redox agents. Problem For the reaction:2 AgCl(s) H2(g) → 2 H(aq) 2 Ag(s) 2 Cl-Identify the atoms that undergo oxidation or reduction and list the oxidizing and reducing agents. Solution The first step is to assign oxidation states to each atom in the reaction. AgCl:Ag has a 1 oxidation stateCl has a -1 oxidation stateH2 has an oxidation state of zeroH has a 1 oxidation stateAg has an oxidation state of zero.Cl- has a -1 oxidation state. The next step is to check what happened to each element in the reaction. Ag went from 1 in AgCl(s) to 0 in Ag(s). The silver atom gained an electron.H went from 0 in H2(g) to 1 in H(aq). The hydrogen atom lost an electron.Cl kept its oxidation state constant at -1 throughout the reaction. Oxidation involves the loss of electrons and reduction involves the gain of electrons.Silver gained an electron. This means the silver was reduced. Its oxidation state was reduced by one. To identify the reduction agent, we must identify the source of the electron. The electron was supplied by either the chlorine atom or the hydrogen gas. Chlorines oxidation state was unchanged throughout the reaction and hydrogen lost an electron. The electron came from the H2 gas, making it the reduction agent. Hydrogen lost an electron. This means the hydrogen gas was oxidized. Its oxidation state was increased by one.The oxidation agent is found by finding where the electron went in the reaction. Weve already seen how hydrogen gave an electron to silver, so the oxidation agent is the silver chloride. Answer For this reaction, hydrogen gas was oxidized with the oxidizing agent being silver chloride. Silver was reduced with the reducing agent being H2 gas.