Molar bond enthalpy - Study guides, Class notes & Summaries

Thermochemistry - CORRECT ANSWER-the study of energy changes that occur during chemical reactions and changes in state bond enthalpy - CORRECT ANSWER-the energy needed to break one mole of bonds in gaseous molecules under standard conditions Molar enthalpy - CORRECT ANSWER-The enthalpy change associated with a physical, chemical or nuclear change involving one mole of a substance. Kinetic energy - CORRECT ANSWER-energy of motion of particles in a substance heat - CORRECT ANSWER-The energ...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...

ACS Chemistry Final general Chem 1 Review 63 Questions with Verified Answers Density - CORRECT ANSWER mass / volume Conversion from celsius to kelvin - CORRECT ANSWER K = DegC + 273.15 Conversion from DegF to DegC - CORRECT ANSWER DegC = (5/9) (DegF - 32) Conversion from DegC to DegF - CORRECT ANSWER DegF = (9/5)(DegC) + 32 Intensive properties - CORRECT ANSWER Independent of amount of matter examined Extensive propertires - CORRECT ANSWER Dependent of amount of matter examined...

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...

General Chemistry ACS EXAM (2015 version) 60 Questions with Verified Answers A 20.0 g sample of mercury(II) oxide (HgO, M = 216.6) is heated strongly, causing it to decompose to metallic Hg and O2 gas. What volume of O2 gas is produced (measured at STP)? (A) 1.03 L (B) 2.07 L (C) 4.14 L (D) 14.0 L - CORRECT ANSWER A When 30.0 mL of 0.10 M AgNO3 is added to 30.0 mL of 0.10 M NaCl, aqueous NaNO3 and solid AgCl are formed. How much solid AgCl is produced? (A) 0.0030 mol (B) 0.0...

General Inorganic Chemistry Exam With 100% Correct Answers 2024 Dalton's Atomic theory - answerElements are composed of tiny indivisible particles called atoms. Inorganic Chemistry - answerstudy of the synthesis and behavior in inorganic and organometallic compounds Law of Multiple Proportions - answerIf two elements combine to form more than one compound, the ratio of the mass of an element to a fixed mass of the other element is a whole number or a simple fraction. Law of Conservatio...

Chemistry II ACS Exam 91 Questions with Verified Answers Phase - CORRECT ANSWER a physically distinct and homogenous part of a system intermolecular forces - CORRECT ANSWER the attractive and repulsive forces among the particles-molecules, atoms or ions in a sample of matter heat of vaporization - CORRECT ANSWER the enthalpy change occurring when 1 mol of a liquid substance vaporizes heat of fusion - CORRECT ANSWER the enthalpy change occurring when 1 mol of a solid melts heat of ...

HESI A2 ENTRANCE EXAM: READING COMPREHENSION, CHEMISTRY, GRAMMAR, BIOLOGY, VOCABULARY & GENERAL KNOWLEDGE, CRITICAL THINKING, ANATOMY & PHYSIOLOGY AND MATH VERSION 2 (With answers) Reading Comprehension Neurologists and biological psychologists have witnessed a sharp increase in the knowledge and understanding of particular structures of the brain over the past two decades. As technology becomes ever more advanced, scientists are able to isolate the functions of even small regions of ...

Semmelweis Entrance Exam Chemistry| Questions With Verified Answers What are the 4 main elements of living organisms? Correct Answer: carbon, nitrogen, oxygen, hydrogen What are atomic orbitals? Correct Answer: regions where there is a high probability of finding an electron What are the first few electron configurations? Correct Answer: 1s 2s, 2p 3s, 3p, 3d 4s, 4p, 4d, 4f What are primary chemical bonds? Correct Answer: ionic, covalent, metallic What are secondary chemical bo...

Test for carbonates - - add dilute HCL - it makes carbon dioxide test for carbon dioxide by bubbling it through lime water Test for ammonium ions - -add sodium hydroxide -warm the mixture -hover damp red litmus paper over it , if it turns blue the ions are present Test for sulphate ionz (SO4 2-) - - add dilute HCL - then add BaCl2 - BaSO4 is made which is insoluble in water so a white precipitate will be formed Test for Halides (Cl-, Br-, I-) - - add nitric acid - add silver nitrate -...