Chemistry 30 Assignment Answer Keys

Lecture Notes, Homework & Readings

 

Problem Sets on Sapling Learning

Reading & Textbook Problem Assignments

  • Chapter 1 - Chemistry: An Introduction
  • Chapter 3 - Matter
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Questions & Problems: 4,6,12,16,18,30,50
  • Chapter 2 - Measurements & Calculations
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Questions & Problems:
      • Scientific Notation & Significant Figures: 8-14(even),22,28,30,36,38,40,46-52(even)
      • Metric Measurements & Unit Conversions by Dimensional Analysis: 60,62,64,100
      • Temperature & Density: 74,76ac,78,80,84,86,88,90,92,94,96ad
      • Additional Problems: 106,112,136,138,140,152
  • Chapter 4 - Elements, Atoms, & Ions
    • Do the Self-Check Exercises in the chapter.
    • Chapter 4 End-of-Chapter Active Learning Questions: 22
    • Chapter 4 End-of-Chapter Questions & Problems: 20,36,38,42,56,58,66-84(even),94,106,108
  • Chapter 5 - Formulas & Naming
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Questions & Problems:
      • Binary Ionic & Covalent Compounds:
        4,10,12,14,18,20,22,42,44,76,78
      • Acids & Compounds with Polyatomic Ions:
        26,28,34,36,40,46,48,50,56,58,62,80,82,84,92
  • Chapter 8 - Chemical Composition: Moles and Formulas
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Active Learning Questions: 22,24
    • End-of-Chapter Questions & Problems: 6-18(evens), 20abc, 22b, 24cde, 28def, 30ce, 32ab, 36de, 38ad, 40
      • Problems on Empirical & Molecular Formulas: 46ac,56,58,60,64,66,78,80
      • Additional Practice: 94,96,98
  • Chapter 6 - Chemical Reactions (part 1)
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Questions & Problems:
      • 38-46(evens),52,56,64
      • Extra balancing equations practice: 74,76
  • Chapter 7 - Chemical Reactions (part 2)
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Questions & Problems:
      • 12-24(evens),26bc,32,34,36,40ab,50bcd,54,82
  • Chapter 9 - Stoichiometry
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Active Learning Questions: 16,18,20
    • End-of-Chapter Questions & Problems: 8,12,14b,16ad, 20abc,30,32,34,46ad,50ab,52,54,56,62,64,66
  • Chapter 15 - Solutions & Concentration, Acid-Base Reactions, and Titrations
    Sections 15.1-15.7
    (omit section 15.8)
    • Do the Self-Check Exercises in the chapter.
    • End-of-Chapter Questions & Problems (sections 15.1-15.5): 14,16,18bc,22,24,26,30,32, 34ab,36ab,44cd,46cd,56bc,58,60,62
    • End-of-Chapter Questions & Problems:
      64,66,68,70,72,74
  • Chapter 12 - Chemical Bonding
    • Self-Check Exercises in the chapter: 4abde, 5acdf
    • End-of-Chapter Questions & Problems: 56,60,62,70,72,76,78,82,86bcd,110,114,118abd
  • Chapter 13 - Gas Laws
    • Self-Check Exercises in the chapter: 13.11, 13.12
    • End-of-Chapter Questions & Problems: 10,88,92(additional: 20,32,50,54,56)

 

Extra Practice Worksheets

 

 

Lecture Notes Outlines, Reference, Animations & Tutorials

  • Powerpoint Notes Outlines

    • A - Introduction to Chemistry (Ch.1, Ch.3)
      • VIEW: Full-color PDF with one slide per page (does not print)
      • PRINT: PDF handout with 4 slides per page
    • B - Expressing Numbers in Scientific Notation (Ch.2)
    • C - Significant Figures (Ch.2)
    • D - Metric Units, Dimensional Analysis, Density, and Problem-Solving (Ch.2)
    • E - Chemical Foundations: Elements, Atoms & Isotopes (Ch.4)
    • F - Chemical Foundations: Periodic Table, Elements & Ions (Ch.4)
    • G - Formulas & Naming (Ch.5)
    • H - The Mole and Empirical & Molecular Formulas (Ch.8)
    • I - Chemical Reactions & Equations (Ch. 6-7)
    • J - Stoichiometry (Ch. 9)
    • K - Solutions (Ch. 15)
    • L - Solution Stoichiometry & Titrations (Ch. 15)
    • M - Gas Laws (Ch. 13)
    • N - Electron Dot Structures (Ch. 12)
    • O - VSEPR (Ch. 12)

 

Previous Semester Exam & Quiz Answer Keys

 

Fall 2016 Exam & Quiz Answer Keys

 

 

Answer KeyChemistry 30Unit 1: Energy Changes in Chemical Reactions22 maxAssignment 1: Sections 1-1 to 1-61.Define “potential energy” and “kinetic energy”. Give some specific examples of each form of energy.Potential energy – stored energy. Chemical bond energy, nuclear energy are examples.Kinetic energy – energy of motion. Heat, light, electrical energy are all examples.2.What is the SI unit for energy?The joule, J. (In chemistry we will typically refer to kilojoules, kJ 1 kJ = 1,000 J)3.State the Law of Conservation of Energy. What is another name for this Law?Also known as the First Law of Thermodynamics, the Law of Conservation of Energy tells us that energy can be converted from one form to another, but cannot be created or destroyed during chemical reactions.4.What is the relationship between the amount of kinetic energy a particle has and how fast it is moving? Pick one of the following:A. Slower moving particles have more kinetic energy than faster particles.

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