Hess law - Study guides, Class notes & Summaries
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AQA A LEVEL Chemistry All Answers Correct 2024
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AQA A LEVEL Chemistry All Answers Correct 2024 
Relative atomic mass 
of an atom of Carbon-12 
Relative molecular mass 
carbon-12 atom 
The Avogradro constant 
ideal gas equation 
The average mass of an atom of an element, relative to 1/12th of the mass 
Average mass of a molecule compared to 1/12th of the mass of a 
the number of particles in a mole 
pV = nRT 
empirical formula 
the simplest whole number ratio of atoms of each element in a compound 
percentage atom econom...
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AQA A LEVEL Chemistry Exam 2023	
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AQA A LEVEL Chemistry Exam 2023	 
 
Relative atomic mass - correct answer The average mass of an atom of an element, relative to 1/12th of the mass of an atom of Carbon-12 
 
Relative molecular mass - correct answer Average mass of a molecule compared to 1/12th of the mass of a carbon-12 atom 
 
The Avogadro constant - correct answer the number of particles in a mole 
 
ideal gas equation - correct answer pV = nRT 
 
empirical formula - correct answer the simplest whole number ratio of atoms of...
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BTEC Unit 5 – Chemistry Questions Graded A+
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Enthalpy of combustion (∆Hc) - ANSWER-The enthalpy change that occurs when one mole of a substance is burnt completely in oxygen under standard conditions 
 
Enthalpy of Formation (∆Hf) - ANSWER-The enthalpy change that occurs when one mole of a substance is formed from its elements in their standard states under standard conditions 
 
Enthalpy - ANSWER-The thermal energy stored in a chemical system. It is defined by: 
 
Enthalpy = Internal energy of the system + (pressure x volume) 
 
H = U...
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AQA A LEVEL Chemistry QUESTIONS AND ANSWERS LATEST TOP SCORE.
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AQA A LEVEL Chemistry QUESTIONS AND ANSWERS LATEST TOP SCORE. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Relative atomic mass - ANS.The average mass of an atom of an element, relative to 1/12th of the mass of an atom of Carbon-12 
 
Relative molecular mass - ANS.Average mass of a molecule compared to 1/12th of the mass of a carbon-12 atom 
 
The Avogradro constant - ANS.the number of particles in a mole 
 
ideal gas equation - ANS.pV = nRT 
 
empirical formula - ANS.the simplest whole number ...
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Civil Procedure Final Exam With Correct Answers
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Civil Procedure Final Exam 
 
 
 
litigation - ANS the process by which parties seek to resolve their dispute by going to court 
 
Sources of legal authority - ANS A. 1) constitutions (highest form of law); 2) statutes (acts of congress, peoples reps from each state); 3) court rules (procedures in every court system); 4) case law 
primary, and potentially binding ; 5) treaties; 6) regulations; 7) ordinances 
 
stare decisis - ANS top down precedent, must abide by decided cases-This e...
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AQA A LEVEL CHEMISTRY END TERM EXAM 2023
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AQA A LEVEL CHEMISTRY END TERM EXAM 2023 
 
 
repulsion in shapes of molecules - ANSWER-Lone pair-lone pair > lone pair 
bonding pair > bonding pair-bonding pair 
 
electronegativity - ANSWER-the power of an atom to attract the pair of 
electrons in a covalent bond 
 
hess' law - ANSWER-Total enthalpy change for a reaction is independent of 
the route chosen 
 
mean bond enthalpy - ANSWER-The energy required to break a covalent bond 
into gaseous atoms averaged over different ...
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Test Bank Ebersole and Hess’ Gerontological Nursing & Healthy Aging 5th Edition by Theris A. Touhy, and Kathleen F Jet | Complete Chapter 1-28 (2023/2024)
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Which of the following is true about the Nurse Competence in Aging (NCA) initiative? 
a. It was developed to support the professional development and leadership growth of 
nurses who provide care to older adults in long-term care. 
b. It developed resources for nurses to access evidence-based information on topics 
related to the care of older adults. 
c. It provides predoctoral and postdoctoral scholarships for study and research in 
geriatric nursing. 
d. It developed the first certification i...
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AQA A LEVEL Chemistry questions and answers 100% guaranteed success.
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AQA A LEVEL Chemistry questions and answers 100% guaranteed success. 
 
 
 
 
 
 
 
 
 
 
Relative atomic mass - correct answer. The average mass of an atom of an element, relative to 1/12th of the mass of an atom of Carbon-12 
 
Relative molecular mass - correct answer. Average mass of a molecule compared to 1/12th of the mass of a carbon-12 atom 
 
The Avogradro constant - correct answer. the number of particles in a mole 
 
ideal gas equation - correct answer. pV = nRT 
 
empirica...
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CHEM1011 Week 9 Questions And Answers
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Standard enthalpy of formation correct answer: enthalpy change when it is made from the stable form of its elements at standard condition 
 
combustion enthalpy correct answer: exothermic, so always negative 
 
atomisation enthalpy correct answer: endothermic, so always positive 
 
∆H(rxn)= correct answer: ∑∆Hºf(products) - ∑∆Hºf(reactants) 
 
standard enthalpy of formation correct answer: change of enthalpy during the formation of one mole of the substance from its constituent ...
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AQA Alevel Chemistry Paper 1 35 Questions With Correct Answers
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AQA A-level Chemistry Paper 1 |35 Questions| With Correct Answers. 
Explain what is meant by the term co-ordinate bond 
Define the term Ligand 
What can lattice enthalpy defined as? (2 things) 
Why is the experimental value for lattice dissociation of some compounds greater than the theoretical value? 
what does the perfect ionic model assume? 
What 2 things might cause a different lattice enthalpy? 
why is the lattice enthalpy greater for ions with a high charge? 
Why is the lattice enthalpy gr...
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