Thermochemical equation Study guides, Class notes & Summaries
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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update)
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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update) 
 
 
MODULE 1 EXAM 
Question 1	 Click this link to access the Periodic Table. This may be helpful throughout the exam. 
1.	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 = smalle...
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CHEM 103 Module 3 Exam Portage Learning 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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CHEM 103 MODULE 3 EXAM WITH ANSWERS
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CHEM 103 MODULE 3 EXAM WITH ANSWERS 
 
 
Click this link to access the Periodic Table. This may be helpful throughout 
the 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. 
 
 
1.	The type of thermochemical process 
 
2.	The calorimeter and mixture of HCl + NaOH Your Answer: 
1.	The typ...
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Chemical Engineering Thermodynamics Ch. 20 Exam || Questions & Answers (100% Correct)
- Exam (elaborations) • 8 pages • 2023
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Chemical Engineering Thermodynamics Ch. 20 Exam || Questions & Answers (100% Correct) Chemical Engineering Thermodynamics Ch. 20 Exam || Questions & Answers (100% Correct) Chemical Engineering Thermodynamics Ch. 20 Exam || Questions & Answers (100% Correct) thermochemical equation - ANSWER - A chemical equation that shows the heat involved for the amounts of substances specified 
 
spontaneous change - ANSWER - A change that occurs by itself, without an ongoing input of external energy 
 
entrop...
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Chemical Engineering Thermodynamics Ch. 20 Exam || Questions & Answers (100% Correct)
- Exam (elaborations) • 8 pages • 2023
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Chemical Engineering Thermodynamics Ch. 20 Exam || Questions & Answers (100% Correct) 
Chemical Engineering Thermodynamics Ch. 20 Exam || Questions & Answers (100% Correct) 
 
 
thermochemical equation - ANSWER - A chemical equation that shows the heat involved for the amounts of substances specified 
 
spontaneous change - ANSWER - A change that occurs by itself, without an ongoing input of external energy 
 
entropy (S) - ANSWER - A thermodynamic quantity related to the # of ways the energy of...
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Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+)
- Exam (elaborations) • 9 pages • 2023
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Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+) 
Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+) 
 
Which example is an exothermic reaction? - ANSWER - condensation 
 
Two objects (A and B) of the same temperature are in contact with each other. 
Which statement is true? - ANSWER - Although the molecules collide, no heat transfers because there is no temperature difference between the objects 
 
Which parameter is measured directly in a coffee-cu...
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CHEM133 Week 16 Final Exam (All Correct)
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CHEM133 Week 16 Final Exam (Spring) Questions and Answers APU
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ACS Chemistry Final Exam 182 Questions with Verified Answers,100% CORRECT
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ACS Chemistry Final Exam 182 Questions with Verified Answers 
 
Layout of an element (mass # & atomic #) - CORRECT ANSWER 
 
atomic number = - CORRECT ANSWER # of protons 
 
mass number = - CORRECT ANSWER # of protons + neutrons 
 
the number of protons in a neutral atom will equal the - CORRECT ANSWER # of electrons 
 
how to find the correct number of neutrons - CORRECT ANSWER mass number - atomic number 
 
Forms of the same elements that differ in amount of neutrons - CORRECT ANSWER isotopes...
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CHEM133 Week 16 Final Exam (Spring)
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