Chemistry

The goal of your Signature Assignment is to show that you can compute properties of solutions and analyze and interpret data. You will create a PowerPoint presentation that shows the process of going through an acid/base titration like you would if you were in a physical lab. You will prepare a sample of an unknown acid to titrate using a known concentration of base. You will set-up a burette filled with a known concentration of base and use proper titration techniques to reach an end-point to the titration. You will then calculate the concentration of the unknown acid on your own. For Part I: Create a PowerPoint presentation (4-6 slides) that covers the lab scenario above. Include your thoughts on why understanding acid/base titration is important to your future career, and how you will use this concept as you complete your degree. Your presentation must consist of more than merely a series of bullet points to earn full credit. Use the Notes section for each slide to fully explain your answers. For Part II: Your instructor will provide guidance and examples for completing calculations for titration. This assignment should be in current APA Style with both a title slide and a reference list that includes all of the sources used. At least two scholarly sources should be used (your textbook can be one of the sources). See rubric for specific grading criteria.

Compose a minimum 1-page essay summarizing the article “Clearing the Air”Preview the document from the April 2020 issue of ChemMatters by focusing on the questions below. Be sure to proofread and edit your paper for clarity and review the grading rubric to ensure you include all of the required elements in your summary. Find the reading rubric at the bottom of this page.Focus Questions:How can ozone help and hurt life on Earth? What makes the same chemical have both effects?The current coronavirus pandemic began in December of 2019.  The amount of cases began to increase dramatically worldwide in March of 2020. The virus is particularly dangerous to those with respiratory issues.  Based on the info in this article, what additional dangers may be present for people fighting the coronavirus in urban areas as summer approaches again in the northern hemisphere?Observe the map of the United States titled “8-Hour Ozone Nonattainment Areas (Jan. 2020)” on page 11.  Dangerous levels of ozone can be found predominantly in areas with a high population density.  Create an argument based on evidence as to why California contains the greatest amount of land area with extreme levels of ground level ozone.  There are many areas in the United States with high population density such as the Northeast U.S.  What factor or factors may be causing the increased levels in California?Hint: find other maps of the US to compare to. Think about all of the factors mentioned in the article. Make sure to cite, and include any maps you used at the very end of your paper.In what format should I write my article?11 pt. Calibri, Palatino, or Times New Roman; single-spaced; normal margins.In what format should I cite?All in-text and Works Cited should be in MLA, 8th Edition.What should the Title be?it should be “4th Six Weeks’ Reading Summary: Clearing the Air”

1. How are covalent bonds similar and different from ionic bonds? What types of atoms are involved in each type of bond? 2. Determine whether the following bonds are nonpolar covalent, polar covalent, or ionic. If the bond is covalent, is the bond a single, double or triple bond? Also if the bond is polar covalent, determine polarity -which atom is slightly positive and which is slightly negative in charge? a) O2 b) NaF c) CO d) NH3 3. Use the systematic approach to covalent bonds (coordinate covalent bonding) for the polyatomic ion SO32- what type of bonds are between the sulfur (central atom) and each of the oxygens? 4. What is the geometry, name, and overall polarity of the molecule? a) NCl3 b) CO2 c) CF4 d) BH3

The essay should focus on how alcohol is metabolized in the human body and how it deteriorates or affects the brain and liver. Some alcohol-related diseases in the brain or liver should be discussed.

Your initial post in the discussion this week consists of two parts. First, choose a molecule used in healthcare, industry, or found in a natural source and discuss the importance of this molecule. Be sure to include at least one outside source and make sure to follow APA citation guidelines. In the second part of your initial post, we will be practicing naming ionic and covalent compounds as well as polyatomic ions. To begin, give the chemical formula for each of the following: A covalent compound containing no more than two types of elements, an ionic compound no more than two types of elements, and an ionic compound containing a polyatomic. Be sure that these compounds are valid (for example, the charges balance out in the ionic compound) and that the subscripts do not exceed 10.

1. How are covalent bonds similar and different from ionic bonds? What types of atoms are involved in each type of bond? 2. Determine whether the following bonds are nonpolar covalent, polar covalent, or ionic. If the bond is covalent, is the bond a single, double or triple bond? Also if the bond is polar covalent, determine polarity -which atom is slightly positive and which is slightly negative in charge? a) O2 b) NaF c) CO d) NH3 3. Use the systematic approach to covalent bonds (coordinate covalent bonding) for the polyatomic ion SO32- what type of bonds are between the sulfur (central atom) and each of the oxygens? 4. What is the geometry, name, and overall polarity of the molecule? a) NCl3 b) CO2 c) CF4 d) BH3

You perhaps have gone through several electronic devices in your life, for example, cell phones, tablets, and/or computers.  How did you dispose of these devices when they outlived their usefulness?  Your paper should clearly reflect your views, how they have changed over time, and whether you are thinking of doing anything differently. You should use and reference at least three outside resources to justify your views.

You are required to write an essay on the topic “Chemistry in Health-Care climate change and Environmental Protection. To format of the essay is the following atleast 6 pages written in times new roman or arial fonts with size 12 font and single spaced. You are encouraged to add relevant figures in your essay write up and add the reference’s used.

.” In this essay please do the following: 1) Define what science and chemistry are to you 2) How has your view on the importance of science and chemistry changed? (If it has not, you can just say that) 3) Based on what you have learned in class, how are they involved in your life? How could they apply to your future career? 4) What would be your response to a friend who says that taking chemistry/science is pointless? 5)

HI hope you’re well :D. My friend has this assignment. Even though it is chemistry it does not need to have the technical vocabulary. More of the pro and cons of Chemotherapy. TWhat are the pros and cons about people receiving Chemotherapy and Radiation if that person has stomach cancer? And how do chemotherapy and radiation work on cancer patients?Please  ensure you have at least 2 professional references and that they are properly cited in APA format.  Report length should be at least 500 words.