Endothermic Study guides, Class notes & Summaries
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AP Chemistry Thermodynamics Test (2023) || Questions & Answers (100% Correct)
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AP Chemistry Thermodynamics Test (2023) || Questions & Answers (100% Correct)AP Chemistry Thermodynamics Test (2023) || Questions & Answers (100% Correct)AP Chemistry Thermodynamics Test (2023) || Questions & Answers (100% Correct) 
- ANSWER - endothermic with a high activation energy 
 
a __________ deltaH corresponds to an ________________ process 
 
a. negative, endothermic 
b. positive, endothermic 
c. positive, endothermic 
d. zero, exothermic - ANSWER - c 
 
4Al (s) + 3O2 (g) --> 2Al2O...
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Fire Investigator - master for TCFP test 100% Accurate
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Is NFPA 921 a guide or a standard? - ANSWER It is the Guide for Fire and Explosion Investigations 
 
What are the six steps of the scientific method? - ANSWER Recognize the need 
Define the problem 
Collect the data 
Analyze the data 
Develop a hypothesis 
Test the hypothesis 
 
What step of the scientific method is inductive reasoning? - ANSWER Analyze the data 
 
What step of the scientific method is deductive reasoning? - ANSWER Test the hypothesis 
 
What are the four parts of the fire tetra...
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Fire Investigator - Study Questions For TCFP Fire Investigator 2024 A+ Graded
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Fire Investigator - Study Questions For TCFP Fire Investigator 2024 A+ Graded 
Is NFPA 921 a guide or a standard? - Answer-It is the Guide for Fire and Explosion Investigations 
What are the six steps of the scientific method? - Answer-Recognize the need 
Define the problem 
Collect the data 
Analyze the data 
Develop a hypothesis 
Test the hypothesis 
What step of the scientific method is inductive reasoning? - Answer-Analyze the data 
What step of the scientific method is deductive reasoning? ...
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FF2 Final Exam (Latest 2023/ 2024) Questions and Verified Answers| 100% Correct
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FF2 Final Exam (Latest 2023/ 2024) Questions and Verified Answers| 100% Correct 
 
Q: What building component may be mounted over doors and windows to prevent illegal entry? 
A. Truss assemblies 
B. Plywood sheathings 
C. Solar energy panels 
D. Security bars or grilles 
 
 
Answer: 
D. security bars or grilles 
 
 
 
Q: Additions to the structure, replacing fire escapes with enclosed stairways, and removing non-load-bearing walls are all types of: 
A. roof obstructions. 
B. security measures....
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Fire Investigator - Master for TCFP Full Test Bank/2022 TCFP Possible Questions and Answers
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Fire Investigator - Master for TCFP Full Test Bank/2022 TCFP Possible Questions and Answers 
 
Is NFPA 921 a guide or a standard? 
It is the Guide for Fire and Explosion Investigations 
What are the six steps of the scientific method? 
Recognize the need 
Define the problem 
Collect the data 
Analyze the data 
Develop a hypothesis 
Test the hypothesis 
What step of the scientific method is inductive reasoning? 
Analyze the data 
What step of the scientific method is deductive reasoning? 
Test th...
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Chem 1311 Exam 3 ACC Professor Rahman 2023 with 100% correct answers
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A __________ ΔH corresponds to an __________ process. 
 
-zero, endothermic 
-positive, exothermic 
-negative, endothermic 
-zero, exothermic 
-positive, endothermic correct answerspositive, endothermic 
 
Which one of the following is NOT considered a fossil fuel? 
 
-natural gas 
-hydrogen 
-anthracite coal 
-petroleum 
-crude oil correct answershydrogen 
 
Which one of the following statements is FALSE? 
 
-The enthalpy change for a reaction is equal in magnitude, but opposite in si...
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IB chemistry HL Latest Version Graded A+
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IB chemistry HL Latest Version Graded 
 
A+ 
 
exothermic reaction heat is released by the system 
ΔΗ<0 
 
endothermic reaction heat is absorbed by the system 
ΔΗ>0 
 
standard enthalpy change of reaction(ΔΗ) the heat energy transferred under standard 
conditions (pressure-101.3 kPa, temperature- 298 K) 
 
combustion and neutralization are exothermic processes 
 
average bond enthalpy the energy required to break one mole of a certain type of bond in the 
gaseous state averaged acro...
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6.1.3_Final_Exam__Semester_2_Exam 2023 complete with correct answers 100%
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6.1.3 Final Exam: Semester 2 Exam Chemistry Sem 2 
Points Possible: 100 Name: 
Date: 3/4/2023 
 
In this test, you will apply what you have learned in the semester. Answer the questions below. Submit this to your teacher when you are done. 
 
Show all your work on this test. 
 
Question 1: Energy in Matter (20 points) 
 
A.	A student put a bottle of water and a can of sugared soda in the freezer to chill them quickly. When she took them out, the bottle of water was frozen but the can of soda was...
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Milady Standard Barbering Chapters 7-9 Exam Questions and Verified Answers| 100% Correct| A Grade |Latest
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Milady Standard Barbering Chapters 7-9 
Exam Questions and Verified Answers| 100% 
Correct| A Grade |Latest 
 
Chapter 7 – Basics of Chemistry 
 QUESTION 
 There are 118 different elements known to science today. How many of these are naturally 
occurring on Earth? 
 
 
Answer: 
98 
 
 
 
 QUESTION 
 What is the basic building blocks of all matter? 
 
 
Answer: 
Atoms 
 
 
 
 QUESTION 
 What is the most common element found in the known universe? 
 
 
Answer: 
Hydrogen 
 
 
 
 QUES...
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BICSI - Installer 1 – Exam Review | 120 Questions | 100% Correct Answers
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BICSI - Installer 1 – Exam Review | 120 Questions | 100% Correct Answers 
 
B 
A third 90-degree bend may be permitted in a conduit run if the run does NOT exceed ______? 
 
A 5 m (16.5') 
B 10 m (33') 
C 15 m (50') 
D 30 m (100') 
C 
Which of the following is a property of an electromagnetic field built around a conductor that opposes any changes in current flow in a circuit? 
 
A Impedance 
 
B Capacitance 
 
C Inductance 
 
D Resistance 
A 
Which of the following markings is used for no...