Endothermic reactions - Study guides, Class notes & Summaries
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CHEM 1305 UPDATED Exam Questions and CORRECT Answers
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Which of the following statements is incorrect? 
A). a body in motion possesses kinetic energy because of its motion 
B). an object possess potential energy because of its position or composition 
C). nuclear energy is an important kind of potential energy. 
D). chemical reactions and physical changes that release energy to their surroundings are 
endothermic 
E). the Law of Conservation of Matter and Energy states that the combined amount of matter 
and energy in the universe is fixed. - D ...
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MCAT General Chemistry (Princeton Review) Questions and Answers | Latest Update | 2024/2025 | Already Passed
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MCAT General Chemistry (Princeton 
Review) Questions and Answers | Latest 
Update | 2024/2025 | Already Passed 
 
What is the role of a Lewis acid and a Lewis base in a chemical reaction? 
 
 A Lewis acid is an electron pair acceptor, while a Lewis base is an electron pair donor. They 
interact to form a coordinate covalent bond where the base donates an electron pair to the acid. 
 
How does the concept of bond enthalpy relate to the strength of a chemical bond? 
 Bond enthalpy (or bond dissoci...
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10th Grade Honors Chemistry Final Exam Flashcards
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10th Grade Honors Chemistry Final Exam Flashcards 
Thermochemistry ️The study of heat effects in chemical reactions. 
Exothermic Reaction ️A reaction that releases energy in the form of heat. 
Examples: Combustion, freezing water. 
Heat generated is added to the product side (right side) because heat is released. 
Endothermic Reaction ️A reaction that absorbs energy in the form of heat. 
Examples: Melting ice, evaporating liquid water, boiling water. 
Heat generated is added to the ...
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IB 150 Exam Questions And Answers (Verified And Updated)
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IB 150 Exam Questions And Answers 
(Verified And Updated) 
When the ball stops - answerEnergy is converted into thermal kinetic energy 
Negatively charged electrons are most stable when - answerIts located very close to the 
nucleus 
Low chemical P.E. 
Electronegativity - answerThe ability to attract electrons 
High electronegativity - answerElectrons are closer to the nucleus 
Low electronegativity - answerElectrons are further away from the nucleus 
What happens when P.E. decreases? - answerEn...
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AQA GCSE CHEMISTRY 8462/2H Paper 2 Higher Tier Question Paper + Mark scheme [MERGED] June (2023/2024)(VERIFIED)
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AQA GCSE CHEMISTRY 8462/2H Paper 2 Higher Tier 
Question Paper + Mark scheme [MERGED] June 
(2023/2024)(VERIFIED) 
Mean rate of reaction (with reactant) - ans -Rate of reaction: 
Quantity of reactant used 
---------------------------- 
Time taken 
Mean rate of reaction (with product) - ans -Rate of reaction: 
Quantity of product formed 
---------------------------- 
Time taken 
Measurements for quantity of product or reactant - ans -Either as mass in g or as 
volume in cm³ 
Measurements for ...
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10th Grade Honors Chemistry Final Exam Questions And Answers Well Illustrated 2024.
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10th Grade Honors Chemistry Final Exam Questions And Answers Well Illustrated 2024. 
 
 
 
 
Thermochemistry - correct answer. The study of heat effects in chemical reactions. 
 
Exothermic Reaction - correct answer. A reaction that releases energy in the form of heat. 
 
Examples: Combustion, freezing water. 
 
Heat generated is added to the product side (right side) because heat is released. 
 
Endothermic Reaction - correct answer. A reaction that absorbs energy in the form of heat. ...
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IB 150 Exam Questions And Answers (Verified And Updated)
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IB 150 Exam Questions And Answers 
(Verified And Updated) 
When the ball stops - answerEnergy is converted into thermal kinetic energy 
Negatively charged electrons are most stable when - answerIts located very close to the 
nucleus 
Low chemical P.E. 
Electronegativity - answerThe ability to attract electrons 
High electronegativity - answerElectrons are closer to the nucleus 
Low electronegativity - answerElectrons are further away from the nucleus 
What happens when P.E. decreases? - answerEn...
-
IB 150 Exam Questions And Answers (Verified And Updated)
- Exam (elaborations) • 18 pages • 2024
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- $12.49
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IB 150 Exam Questions And Answers 
(Verified And Updated) 
When the ball stops - answerEnergy is converted into thermal kinetic energy 
Negatively charged electrons are most stable when - answerIts located very close to the 
nucleus 
Low chemical P.E. 
Electronegativity - answerThe ability to attract electrons 
High electronegativity - answerElectrons are closer to the nucleus 
Low electronegativity - answerElectrons are further away from the nucleus 
What happens when P.E. decreases? - answerEn...
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WGU Biochemistry OA (Latest 2022/2023) Verified Answers
- Exam (elaborations) • 14 pages • 2022
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WGU Biochemistry OA (Latest 2022/2023) Verified Answers 
Bohr Effect chart (low pH) 
C- High CO2 
H- High H+ 
A- Acidic 
R-Release of O2(rt. Shift) 
T- tense state (in tissues) 
 
 
Primary structure 
Sequence of amino acids that make up a protein 
 
 
Secondary Structure 
Sequence of amino acids fold. 
 
 
Tertiary Structure 
-more folding in a 3D shape. 
-R groups (side chains) 
 
 
Quaternary Structure 
Protein has more than 1 polypeptide chain. 
 
 
Chemical reaction 
-absorb and release en...
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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) 
 
 
a. negative, endothermic 
b. positive, endothermic 
c. positive, endothermic 
d. zero, exothermic - ANSWER - c 
 
4Al (s) + 3O2 (g) --> 2Al2O3(s) deltaH = -3351 kJ 
 
a. endothermic, released 
b. endothermic, absorbed 
c. exothermic, released 
d. exothermic, absorbed - ANSWER - c 
 
which one of the following is an exothermic process...
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