Chem 103 module 3 exam Study guides, Class notes & Summaries
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CHEM 103 Module 3 Exam (Portage learning) 2023 Q1: NH4Cl is being dissolved in water
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NH4Cl is being dissolved in water and this process is being studied in a 
styrofoam coffee cup with NO lid and the heat absorbed is measured by 
means of a thermometer immersed in the reaction mixture. Enter the 
correct thermochemistry term to describe the item listed. 
Answer: 
1. NO lid = open system 
2. Heat absorbed = Endothermic process 
Question 2 
Not yet graded / 10 pts 
You may find the following resources helpful: 
Scientific Calculator 
Periodic Table 
 Equation Table Links to an ext...
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Portage Learning – CHEM 103 MODULE 3 Exam
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Portage Learning – CHEM 103 MODULE 3 Exam
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Portage Learning – CHEM 103 MODULE 3 Exam
- Exam (elaborations) • 11 pages • 2023
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Portage Learning – CHEM 103 MODULE 3 Exam 
A reaction between HCl and NaOH is being studied in a styrofoam coffee cup with a lid and the heat given off is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe the item listed.
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CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning)
- Exam (elaborations) • 35 pages • 2023
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CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning) Convert 845.3 to exponential form and explain your answer. 
2. Convert 3.21 x 10-5 to ordinary form and explain your answer. 
1.Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places 
= 8.453 x 102 
2.Convert 3.21 x 10-5 = negative exponent = smaller than 1, move decimal 5 
places = 0. 
Question 2 
Click this link to access the Periodic Table. This may be helpful throughout 
the exam. 
Using the following info...
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CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning)
- Exam (elaborations) • 35 pages • 2023
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CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning) Show the calculation of the mass of a 18.6 ml sample of freon with 
density of 1.49 g/ml 
2. Show the calculation of the density of crude oil if 26.3 g occupies 30.5 
ml. 
1. M = D x V = 1.49 x 18.6 = 27.7 g 
2. D = M / V = 26.3 / 30.5 = 0.862 g/ml 
Question 5 
Click this link to access the Periodic Table. This may be helpful throughout 
the exam. 
1. 3.0600 contains ? significant figures. 
2. 0.0151 contains ? significant figu...
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BIOD 151 :CHEM 103 MODULE 3 EXAM TEST WITH CORRECT ANSWERS
- Exam (elaborations) • 124 pages • 2023
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BIOD 151 :CHEM 103 MODULE 3 EXAM TEST 
WITH CORRECT ANSWERS 
Answer the following clinical case scenario: 
1. Your patient was injured in a house fire. The skin sustained damage through the epidermis, 
dermis, hypodermis, and some muscle tissue. 
1- What degree of burn best describes your patient’s injury? 
2- Would your patient experience pain in the injured area? Why or why not? 
-4th degree 
-No, fourth-degree burns damage the epidermis, the dermis, the hypodermis, and underlying 
tissue su...
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CHEM 103 Module 3 Exam Portage Learning 2023
- Exam (elaborations) • 11 pages • 2023
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CHEM 103 Module 3 Exam Portage Learning 2023. NH4Cl is being dissolved in water and this process is being studied in a styrofoam coffee cup 
with a lid and the heat absorbed is measured by means of a thermometer immersed in the 
reaction mixture. Enter the correct thermochemistry term to describe the item listed. 
1. The type of thermochemical process 
2. The air above the cup 
Your Answer: 
1) endothermic 
2) Surroundings 
1. Heat absorbed = Endothermic process 
2. The air above the cup = Surro...
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PORTAGE LEARNING CHEM 103 MODULE 3 EXAM WITH ANSWERS LATEST UPDATE
- Exam (elaborations) • 16 pages • 2022
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PORTAGE LEARNING CHEM 103 MODULE 3 EXAM WITH ANSWERS LATEST UPDATE
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CHEM 103 Module 3 Exam with Answers – Portage Learning
- Exam (elaborations) • 9 pages • 2023
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CHEM 103 Module 3 Exam with Answers – Portage Learning. The calorimeter and mixture of HCl + NaOH 
Your Answer: 
1. The type of thermochemical process is an acid base reaction or 
neutralization reaction where heat is given off called a exothermic reaction. 
2. The calorimeter and mixture of HCl + NaOH would be described as 
enthalpy or the total energy of the system. 
1. Heat given off = Exothermic process 
2. With lid = closed system 
Question 2 
Not yet graded / 10 pts 
Click this link to a...
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CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning)
- Exam (elaborations) • 35 pages • 2023
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CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning) Using the following information, do the conversions shown below, showing all 
work: 
1 ft = 12 inches 1 pound = 16 oz 1 gallon = 4 quarts 
1 mile = 5280 feet 1 ton = 2000 pounds 1 quart = 2 pints 
kilo (= 1000) milli (= 1/1000) centi (= 
1/100) deci (= 1/10) 
1. 24.6 grams = ? kg 
2. 6.3 ft = ? inches 
1. 24.6 grams x 1 kg / 1000 g = 0.0246 kg 
2. 6.3 ft x 12 in / 1 ft = 75.6 inches 
please always use the correct units in your ...
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