Hess law Study guides, Revision notes & Summaries

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...

AQA CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS covalent bond - ANSWER-a shared pair of electrons between non-metal elements co-ordinate bond - ANSWER-a shared pair of electrons where both electrons are supplied by one atom 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 chang...

internal energy - ΔU = Uf − Ui First Law of Thermodynamics - ΔU = q + w heat - substances not changing phase (per gram) - q = m⋅Cs⋅ΔT heat - substances not changing phase (per mol) - q = n⋅Cm⋅ΔT heat - substances that are changing phase (per gram) - q = m⋅ΔHtrans heat - substances that are changing phase (per mol) - q = n⋅ΔHtrans work - constant external pressure (Pext) - w = −PextΔV work - constant external pressure (Δngas) - ...

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 ...

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 ...

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...

Introduction To Law Enforcement and Criminal Justice 11th Edition by Kären M. Hess - Test Bank

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...

Critical Thinking and Ethic Cases Ch.15 Questions and Answers100% Accurate Siva V. 1138 LLC (Facts) -Five Members entered into a Limited Liability -Ruthiran Siva Owned building they rented -It was a 5 year lease for $4,000 a month -Six months later 1138 was in default and broke lease agreement -Siva sued 1138 and Hess personally Siva V. 1138 LLC, (Decision) The court of appeals held that Hess, as a member owner of 1138 LLC, was not personally liable for the debt that the LLC owed t...

Chapter 3: Writing Effective Reports MULTIPLE CHOICE 1. 2. 3. 4. 5. 6. 7. The statement “the man could not walk a straight line” is an example of a. a fact. b. a conclusionary statement. c. an observation. d. any of these choices. ANS: B PTS: 1 OBJ: Compare how to differentiate among facts, inferences and opinions. REF: p.78 The term PC (probable cause) is needed in which report? a. crime report b. arrest report ANS: B OBJ: Summarize the common problems that occur in many...