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CHEM120 Week 5 Assignment: Redox and Organic Chemistry – With 100% Correct Answers- Download To Score An A+ 1. For the following redox reactions, determine what is oxidized and what is reduced: ( each, 2 points total) 3 Hg2+ + 2 Fe (s) Fe oxidized, He reduced 2 As(s) + 3 Cl2(g) Cl reduced, As oxidized 3 Hg2 + 2 Fe3+ 2 AsCl3 2. List and describe 3 common things that occur during oxidation-reduction reactions (1.5)? 1. Combustion- flames (not explosions) 2. Disproportionation- simultaneous reduc...

CHEM120 Week 5 Concepts: Redox and Organic Chemistry – Download For Revision And Score An A+ OXIDATION-REDUCTION Reduction and oxidation are intertwined concepts that are important to understand ing some of the most important chemical reactions in the human body. In this lesson, we will explore the relationship between these terms and the how to identify what chemicals in a reduction/oxidation reaction (redox reaction) are playing which parts. 1. Redox reactions involve a transfer of: ▪ Nucl...

CHEM120 Week 5 Discussion: Organic Chemistry – Dichloro-diphenyl-trichloroethane (Option 1) Week 5 Discussion: Organic Chemistry Option 1: A growing concern in agricultural and food chemistry is the presence of residues in food. We use many forms of organic chemicals in agriculture and food chemistry and there is a growing concern as to how safe these materials are. The organic compound that I choose for option one is DDT also known as Dichloro- diphenyl-trichloroethane. DDT was the primary ch...

CHEM120 Week 5 Virtual Lab: Organic Chemistry – Download For An A+ OL Lab 9: Building models of organic compounds Learning Objectives: • Build virtual models to learn about the structure o f organic compounds • Draw extended structural formulas of organic compounds Compounds that are based on the carbon atom are known as organic compounds. These compounds commonly contain, nitrogen, oxygen, and hydrogen in addition to carbon. Carbon forms a variety of covalent compounds with varied propert...

CHEM120 Week 4 Assignment: Gas and Acid/Base Chemistry – With 100% Correct Answers 1. Solve these ideal gas law problems. Show all work for credit. a. A gas occupies 250 mL at 739 mmHg. For a ga s at constant temperature, determine the volume of gas at 514 mmHg. (1 points) P*V=P*V 739*250 = 514*V 184750/514 = 359 b. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1 points) 22.4L/mol 4*(1/22.4) 0.179 c. A sample of nitrogen (N2) has a volume...

CHEM120 Week 4 Concepts: The Ideal Gas Laws and Acid/Base Reactions- Download To Score An A+ PHYSICAL STATES OF MATTER In this section, we will discuss the Ideal Gas Laws. First, we will review the properties of solids, liquids, and gases. Second, we will discuss the kinetic-molecular theory of gases, which explains why they are so unique compared to other states of matter. Finally, we will discuss gas law equations, and practice using them to solve for different parameters. This unit has many s...

CHEM120 Week 4 Virtual Lab: Acids and Bases Part I and Part II Learning Objectives • Give examples of acids and bases from everyday life • Define pH and identify acids and bases using the pH sc ale • Apply the Bronsted-Lowry definition of acids and bases to chemical compounds • Describe the amphoteric and self-ionization capacity of water • Calculate the pH of a strong acid and base in solution • Assess whether a neutralization reaction will occur • Evaluate the outcome of simple a...

• CHEM120 Week 4 Virtual Lab: Ideal Gas Law Part I and Part II • Explain the physical concepts of temperature and absolute zero • Define the relationship between pressure, volume and tempe rature in gases using gas thermometry • Apply the Ideal Gas Law Introduction Just because Celsius, Fahrenheit and Kelvin defined their own temperature scales and named them after themselves, it doesn’t mean that you can’t create your own! In the Ideal Gas Law simulation, you will define the physica...

CHEM 120 Week 3 Discussion: Solution Chemistry Molecule Mass V 1 NaCl 2 g CaBr2 6 g 3 Li3N 1 g 5 CaO 7 g 1 For example, one possible combination would be 2 gram s of NaCl in 500 ml of solution. Then, give each of the following for your unique combination being sure to show all of your work: 1. %mass/volume concentration 2. Molarity 3. Osmolarity Make sure to post at least two high quality posts. Follow-Up Post Instructions Respond to at least one peer or the instructor. Further the dialogue by p...

CHEM 120 EXAM 1 REVIEW – DOWNLOAD TO SCORE AN A+ • Scientific method: method of investigation. involves cycles of observation and interpretation. observations, hypotheses, laws, and theories. • Hypothesis: testable explanation. • Independent variable: What scientist is controlling or changing. • Dependent variable: Depends on independent variable. Expected change. Measurable. • Positive control: Group or condition with known outcome. • Negative control: No change is expected. • E...