Chem120 week 3 Study guides, Class notes & Summaries
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CHEM 120 Week 3 Exam 1 (Information)
- Exam (elaborations) • 3 pages • 2023
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CHEM120 Students: 
The first exam in your science course is approaching. The General Education Academic Support is here to help. What can you do ahead of Exam 1? 
 
 
1.	Attend a live exam review 
Thursday, May 12th 6 PM MT Exam 1 Review Join Meeting here: Click here to join 
 
2.	Watch the recording of an exam review Click here to watch recorded exam review 
 
3.	Schedule a 1:1 appointment with a tutor Click here to book 
 
4.	Review the topic videos from weeks 1 and 2 Click her to review 
 
...
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CHEM 120 Week 3 Discussion; Solution Chemistry - Molecule NaCl
- Other • 3 pages • 2023
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Initial Post Instructions 
For your initial post pick a combination of one of the following molecules, one mass quantity, and one total solution volume from this table. You may not use the same combination as another student so be sure to read any existing peers postings before posting your own.
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CHEM 120 Week 3 Exam 1 (Units 1 and 2)
- Exam (elaborations) • 3 pages • 2023
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Answer the following questions (1 point each) to add up to 5 points back to your exam score. 
1.	Question: Choose any isotope of an element and answer the following 
a.	Write the isotopic formula 
b.	How many neutrons in the isotope? 
c.	How many protons are in the isotope? 
d.	How many electrons are in the isotope? 
e.	What is the mass number for the isotope? 
2.	Question: Choose any molecular compound with 3 to 5 atoms in it. 
a.	Draw the Lewis structure. 
b.	Give step by step directions...
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CHEM 120 Week 8 Final Exam 2023(100% CORRECT SOLUTIONS) | Already GRADED A.
- Exam (elaborations) • 22 pages • 2021
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6. (TCO 6) A gas at a temperature of 95 degrees C occupies a volume of 165 mL. Assuming constant pressure, determine the volume at 25 degrees C. Show your work. (Points : 5) Using Charles’ Law, ( V1/T1) = (V2/T2). First, convert temperature to KELVIN (T1 = t1 +273) Thus, T1 = 95 + 273 = 368. We have V1 (165 mL) & T2 = (25 + 273) = 298. V2 = (V1*T2)/T1 = (165 mL*298)/368 = 133.6 mL. 0 7 Short 16 7. (TCO 6) A sample of helium gas occupies 1021 mL at 719 mmHg. For a gas sample at constant tempera...
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CHEM 120 Week 3 Virtual Lab; Stoichiometric Calculations Part I, Part II
- Other • 3 pages • 2023
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Learning Objectives: 
•	Explain the relationship between mass, molecular weight, and numbers of atoms or molecules and perform calculations deriving these quantities from one another 
•	Perform mass-to-mass stoichiometric calculations via conversions to moles 
•	Identify the limiting and excess reagents in a chemical reaction 
•	Calculate the theoretical, actual and percent reaction yield 
•	Define Avogadro’s number and describe the mole quantification of matter
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CHEM 120 Week 3 Discussion; Solution Chemistry - Molecule Li3N
- Other • 2 pages • 2023
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Required Resources 
Read/review the following resources for this activity: 
•	Textbook: Chapter 5, 6, 11 
•	Unit 3 lesson 
Initial Post Instructions 
For your initial post pick a combination of one of the following molecules, one mass quantity, and one total solution volume from this table. You may not use the same combination as another student so be sure to read any existing peers postings before posting your own.
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Chamberlain College of Nursing CHEM 120 Chem Lab 3 study guide (NEW EXAM COPY 2023 )
- Exam (elaborations) • 9 pages • 2023
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CHEM120: Week 2 lab 
Name: Michelle Ramsaroop 
Laboratory 3: Ionic and Covalent Compounds 
Learning Objectives: 
 Name ionic and covalent compounds and derive their chemical formulas 
 Draw Lewis structures of simple covalent compounds 
In this laboratory exercise, we will learn how to derive formulas of ionic and covalent compounds and name 
them. We will also flame test for various metal ions and make models of simple covalent molecules. 
Exploration 1: Explain the following terms (Compl...
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Chamberlain College of Nursing: CHEM120 Week 3 Practice Problem Solutions / CHEM 120 Week 3 Practice Problem Solutions (Latest-2022) |100% Correct Answers, Already Graded “A”|
- Exam (elaborations) • 12 pages • 2022
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Chamberlain College of Nursing: CHEM120 Week 3 Practice Problem Solutions / CHEM 120 Week 3 Practice Problem Solutions (Latest-2022) |100% Correct Answers, Already Graded “A”|
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CHEM 120 Week 3 Assignment; Stoichiometry and Solution Chemisrty
- Other • 2 pages • 2023
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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 3 Exam 1 (Information)
- Exam (elaborations) • 13 pages • 2023
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CHEM 120 Week 3 Exam 1 (Information)
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