Friday, March 20, 2020

English Essay Sample on America What America Means to Me

English Essay Sample on America What America Means to Me When asked what America means to me, I think about the positive aspects of this great nation. The thing that makes America distinct from all other countries is the rights that an American citizen has in America. American citizens probably have more rights than the citizens from any other country in the world . The most important right an American citizen has is freedom, a freedom that a citizen from no other country on the globe has. The second and probably the most important thought that comes to my head when I think about America is how America is definitely the greatest country of our time. Another positive aspect of this great country is how beautiful it is, and how well preserved it is. Although these three things are wonderful things for a nation to be proud of, the people of America have to keep these things up or our great nation will disintegrate. What I mean when I say that the people of America are free I mean that there is a very detailed bill of rights in our constitution listing all of our rights and it is by far the largest list of rights any country has. Americans have freedom of speech, which lets anyone say anything as long as long as it does not offend anyone. Americans also have freedom of the press, which allows journalists to write whatever they want in newspapers. One of the most important rights that American citizens have, and has been the factor that has attracted most of Americas immigrants over the ages, is separation between church and state. This means that people in America can chose which religion to believe in, or to just not believe in any religion. Additionally Americans can choose what level of affiliation they want to observe of any particular religion. This point in the constitution is especially important to me because I am Jewish and many of the countries in the world would not let me follow in t he path of my religion. Overall, I think the rights that we have in America is the best thing about this fabulous country. The second thing that I think about when I am asked what America means to me is how America is the almost like the supreme ruler of the world. Among other things, America is the leader in economy, technology, and defense in the world. As well, Americas people have the best status of living in the entire world and should be an example to all growing countries. America also has one of the most advanced cultures in the world and it is being developed. An example of how America is the supreme ruler is when in the peace talks in Israel, both sides are asking America to be the peacemaker. Why ask America and not any country? Because America is the only country that really has the power to make peace there. I think the only reason why they asked Arab states to be allied with us is because of diplomatic reasons, but not any military reasons, because we probably have the best army in the world. However, we must work hard to stay at the top of all these things mentioned above. The third and sort of afterthought that I think about when I am asked what America means to me is America the beautiful. The reason why they made up this song is that it is true; America is beautiful and very beautiful at that. You probably only have to drive less than an hour from most major cities in order to arrive at a very well preserved, beautiful national park. Of course, these national parks are the only way to remember how America was before colonists settled here; it was calm and peaceful. Although we Americans have made man-made parks inside our cities for our own pleasure, we must face the facts. It is not the real thing. We have the real thing though and the only thing we must do is protect and preserve it. So, is that really what America means to me? Yes, I think so, yes very much so. All these things are true and I would really like to keep these things true by maintaining all of them. We must especially keep on working at being the best, because I am sure most Americans like being the best, and would hate to not be. In addition, although we might not think the other two things mentioned above are important, they are, and they are probably a key part of most of our lives today. The main point I am trying to make is that all these things are excellent, but they must still be preserved and improved.

Tuesday, March 3, 2020

Assigning Oxidation States Example Problem

Assigning Oxidation States Example Problem The oxidation state of an atom in a molecule refers to the degree of oxidation of that atom. Oxidation states are assigned to atoms by a set of rules based on the arrangement of electrons and bonds around that atom. This means each atom in the molecule has its own oxidation state which could be different from similar atoms in the same molecule.These examples will use the rules outlined in Rules for Assigning Oxidation Numbers. Key Takeaways: Assigning Oxidation States An oxidation number refer to the quantity of electrons that may be gained or lost by an atom. An atom of an element may be capable of multiple oxidation numbers.The oxidation state is the positive or negative number of an atom in a compound, which may be found by comparing the numbers of electrons shared by the cation and anion in the compound needed to balance each others charge.The cation has a positive oxidation state, while the anion has a negative oxidation state. The cation is listed first in a formula or compound name. Problem: Assign oxidation states to each atom in H2OAccording to rule 5, oxygen atoms typically have an oxidation state of -2.According to rule 4, hydrogen atoms have an oxidation state of 1.We can check this using rule 9 where the sum of all oxidation states in a neutral molecule is equal to zero.(2 x 1) (2 H) -2 (O) 0 TrueThe oxidation states check out.Answer: The hydrogen atoms have an oxidation state of 1 and the oxygen atom has an oxidation state of -2.Problem: Assign oxidation states to each atom in CaF2.Calcium is a Group 2 metal. Group IIA metals have an oxidation of 2.Fluorine is a halogen or Group VIIA element and has a higher electronegativity than calcium. According to rule 8, fluorine will have an oxidation of -1.Check our values using rule 9 since CaF2 is a neutral molecule:2 (Ca) (2 x -1) (2 F) 0 True.Answer: The calcium atom has an oxidation state of 2 and the fluorine atoms have an oxidation state of -1.Problem: Assign oxidation states to the atoms in hypochlorou s acid or HOCl. Hydrogen has an oxidation state of 1 according to rule 4.Oxygen has an oxidation state of -2 according to rule 5.Chlorine is a Group VIIA halogen and usually has an oxidation state of -1. In this case, the chlorine atom is bonded to the oxygen atom. Oxygen is more electronegative than chlorine making it the exception to rule 8. In this case, chlorine has an oxidation state of 1.Check the answer:1 (H) -2 (O) 1 (Cl) 0 TrueAnswer: Hydrogen and chlorine have 1 oxidation state and oxygen has -2 oxidation state.Problem: Find the oxidation state of a carbon atom in C2H6. According to rule 9, the sum total oxidation states add up to zero for C2H6.2 x C 6 x H 0Carbon is more electronegative than hydrogen. According to rule 4, hydrogen will have a 1 oxidation state.2 x C 6 x 1 02 x C -6C -3Answer: Carbon has a -3 oxidation state in C2H6.Problem: What is the oxidation state of the manganese atom in KMnO4?According to rule 9, the sum total of oxidation states of a neutral molecule equal zero. K Mn (4 x O) 0Oxygen is the most electronegative atom in this molecule. This means, by rule 5, oxygen has an oxidation state of -2.Potassium is a Group IA metal and has an oxidation state of 1 according to rule 6.1 Mn (4 x -2) 01 Mn -8 0Mn -7 0Mn 7Answer: Manganese has an oxidation state of 7 in the KMnO4 molecule.Problem: What is the oxidation state of the sulfur atom in the sulfate ion - SO42-.Oxygen is more electronegative than sulfur, so the oxidation state of oxygen is -2 by rule 5.SO42- is an ion, so by rule 10, the sum of the oxidation numbers of the ion is equal to the charge of the ion. In this case, the charge is equal to -2.S (4 x O) -2S (4 x -2) -2S -8 -2S 6Answer: The sulfur atom has an oxidation state of 6.Problem: What is the oxidation state of the sulfur atom in the sulfite ion - SO32-?Just like the previous example, oxygen has an oxidation state of -2 and the total oxidation of the ion is -2. The only difference is the one less oxygen. S (3 x O) -2S (3 x -2) -2S -6 -2S 4Answer: Sulfur in the sulfite ion has an oxidation state of 4.