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CHEM 120 Week 3 Concepts; Chemical Reactions and Calculations

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Introduction: Just like in preparing your favorite foods, recipes exist for chemicals as well. We can use balanced chemical equations just like a recipe in your favorite cookbook. In chemistry, this process is called stoichiometry.

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CHEM 120 Week 3 Assignment; Stoichiometry and Solution Chemisrty

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1. Balance these chemical reactions: (2 point each, 8 points total) 2. Calculate the formula mass of Al2(SO4)3. (2 points) 3. Calculate the mass of 2.5 moles of NaOH. (1 points) 4. For the balanced chemical equation: Answer the following questions: a. If you produce 7 mols of KBr, how many mols of MgBr2 did you need? (1 point) b. If I have 2 moles of MgBr2, how much KBr can I make in moles? (2 points) 5. You are making 100 ml of a 2 M solution of HCl. How many ml of a 4 M HCl solution will y...

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CHEM 120 Week 2 Virtual Lab; Periodic Table of Elements Part I,Part II

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Objectives • Describe the structure and organization of the periodic table • Classify elements of a family based on their location in the periodic table • Distinguish metals from other element classes based on typical characteristics • Use the flame color test to identify metals based on their position in the periodic table • Explain valence electrons and oxidation state of a main group element to its position in the periodic table • Describe the main trends among groups and pe...

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CHEM 120 Week 2 Virtual Lab; Periodic Table of Elements Part I, Part II.

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Learning Objectives: • Describe the structure and organization of the periodic table • Classify elements of a family based on their location in the periodic table • Distinguish metals from other element classes based on typical characteristics • Use the flame color test to identify metals based on their position in the periodic table • Explain valence electrons and oxidation state of a main group element to its position in the periodic table • Describe the main trends among gr...

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CHEM 120 Week 2 Virtual Lab; Ionic and Covalent Bonds Part 1, Part II

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Learning Objectives • Describe the formation of ionic and covalent bonds • Identify anions and cations • Apply the octet rule • Describe ionic lattice structure • Draw Lewis dot structures • Explain the formation of single, double, and triple bonds • Distinguish between ionic compounds and covalent compounds Introduction Have you ever wondered how atoms are held together?

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CHEM 120 Week 2 Discussion; Atomic Structure - Morphine, C17H19NO3 (Option 2)

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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. The electron configuration of an atom determines the number of electrons available to participate in bonding with another atom. One method of depicting the valence electrons that an atom has is through the...

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CHEM 120 Week 2 Discussion; Atomic Structure - Methyl Salicylate C8H8O3 (Option 2)

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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. The electron configuration of an atom determines the number of electrons available to participate in bonding with another atom. One method of depicting the valence electrons that an atom has is through the...

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CHEM 120 Week 2 Discussion; Atomic Structure - Ibuprofen (Option 1)

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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 comp...

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CHEM 120 Week 2 Concepts; Understanding the Structure and Naming of Molecules

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Introduction Building on the fundamentals of covalent bonding, we will be looking deeper into the structures and behaviors of molecular compounds. We will be exploring how covalent bonding is involved in the structure of these molecules and determines how they interact with the world around them.

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CHEM 120 Week 2 Assignment; Bonding and Naming of Molecules

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1. In terms of electrons, what is an excited state? Give an example of an electron configuration for an excited state. (1 points) 2. Give the ground state electron configuration for Fe. (1 points) 3. What is a valance electron? How many valance electrons does Si have? (1 points) 4. What is the shorthand electron configuration of a potassium ion (K+)? (1 points) 5. Give the chemical formula (with charge) for each of the following polyatomic ions: (0.5 points each, 2.5 points total) 6. What ...

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