General Chemistry Study guides, Class notes & Summaries

CHEMISTRY exam questions from tests p Intermolecular forces are: - between molecules and weaker than a chemical bond Place the following substances in order of increasing boiling point. I) CH3CH3 II) CH3CH2CH2NH2 III) CH3CH2CH2CH3 - I < III < II Determine the normal boiling point of a substance whose vapor pressure is 55.1 mmHg at 35°C and has a ΔHvap of 32.1 kJ/mol. 1 atm = 760 mmHg - 390 K

CHEMISTRY exam questions from tests p Intermolecular forces are: - between molecules and weaker than a chemical bond Place the following substances in order of increasing boiling point. I) CH3CH3 II) CH3CH2CH2NH2 III) CH3CH2CH2CH3 - I < III < II Determine the normal boiling point of a substance whose vapor pressure is 55.1 mmHg at 35°C and has a ΔHvap of 32.1 kJ/mol. 1 atm = 760 mmHg - 390 K

Solutions Manual for General Chemistry: Principles and Modern Applications 10th Edition by Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura & Carey Bissonnette

2 © OCR 2023 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 Which reactions can be catalysed by an enzyme? A Combustion reactions B Electrolysis of metal ores C Reactions in biological systems D Reactions of metals with acids Your answer [1] 2 Which row correctly describes the Group 0 elements? Physical state at 25°C Reactivity A gas very reactive B gas very unreactive C liquid very reactive D liquid...

2 © OCR 2023 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 Which part of the Periodic Table contains the most reactive metals? D A C B Your answer [1] 2 Which process traps heat from the Sun in the Earth’s atmosphere? A Combustion B Displacement C Greenhouse effect D Photosynthesis Your answer [1] 3 © OCR 2023 Turn over 3 The list is part of the reactivity series of metals. Calcium most reacti...

2 © OCR 2023 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 What is the part of the atom labelled X called? X A Core B Ion C Nucleus D Shell Your answer [1] 2 The table shows the properties of four different substances. Which substance is a metal? Substance Appearance at room temperature Melting point and boiling point Conducts heat? A green gas low no B colourless solid high no C shiny red-ora...

Mark scheme H432/01 Periodic table, elements and physical chemistry

When using a pulse load tester on a sealed lead acid battery, the minimum acceptable capacity is... - Answer 80% When a software change is made to a fire alarm system, what percentage of the initiating devices not affected by the change must be tested - Answer 10% When testing elevator recall, the elevator should go to the alternate level when: - Answer The lobby smoke detector on the recall level is activated Minimum requirement for system documentation - Answer Battery calculations/fl...

points. 1. In Analytical Chemistry, we often use calibration curves. Which of the following statements is false concerning calibration curves? (A) Calibration curves permit the analysis of unknowns by comparison with standards (B) The slope of a calibration curve is a measure of a method’s detection limit. (C) Non-zero y-intercepts arise from blank contributions. (D)Straight line calibration curves are desirable but not required 2. A city’s water supply is fluoridated by adding NaF. ...

Test Bank for General Chemistry: The Essential Concept 7th Edition by Raymond Chang, Kenneth Goldsby. Table of Contents: 1 Introduction 2 Atoms, Molecules, and Ions 3 Stoichiometry 4 Reactions in Aqueous Solutions 5 Gases 6 Energy Relationships in Chemical Reactions 7 The Electronic Structure of Atoms 8 The Periodic Table 9 Chemical Bonding I: The Covalent Bond 10 Chemical Bonding II: Molecular Geometry and Hybridization of Atomic Orbitals 11 Introduction to Organic Chemistry 12 Intermolecular F...