New PDF release: Basic Chemistry Concepts and Exercises

By John Kenkel

ISBN-10: 143981337X

ISBN-13: 9781439813379

Chemistry could be a daunting topic for the uninitiated, and all too usually, introductory textbooks do little to make scholars believe relaxed with the advanced material. Basic Chemistry recommendations and routines brings the knowledge of John Kenkel’s greater than 35 years of educating event to speak the basics of chemistry in a realistic, down-to-earth manner.

Using conversational language and logically assembled pix, the e-book concisely introduces each one subject with no overwhelming scholars with pointless element. instance difficulties and end-of-chapter questions emphasize repetition of thoughts, getting ready scholars to turn into adept on the fundamentals ahead of they development to a sophisticated normal chemistry path. superior with visualization options resembling the 1st chapter’s mythical microscope, the booklet clarifies difficult, summary principles and stimulates interest into what can rather be an overpowering topic.

Topics mentioned during this reader-friendly textual content include:

  • Properties and constitution of matter
  • Atoms, molecules, and compounds
  • The Periodic Table
  • Atomic weight, formulation weights, and moles
  • Gases and solutions
  • Chemical equilibrium
  • Acids, bases, and pH
  • Organic chemicals

The appendix includes solutions to the homework workouts so scholars can money their paintings and obtain speedy suggestions to whether they've got thoroughly grasped the suggestions earlier than relocating directly to the following part. Designed to assist scholars embody chemistry no longer with trepidation, yet with self assurance, this sturdy preparatory textual content varieties a company beginning for extra complicated chemistry training.

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Additional resources for Basic Chemistry Concepts and Exercises

Example text

For example, if someone tells you that the atomic number of a certain ­element is 47, you would know that the element is silver. the gain or loss of electrons is called an ion. 2. Additional discussion will be found in Chapter 3. 2 Neutrons and Isotopes The number of neutrons within an atom is quite variable, even for different atoms of the same element. An atom of oxygen, for example, has eight protons and eight electrons, but it can have eight, nine, or 10 neutrons. Similarly, an atom of neon has 10 protons and 10 electrons, but it can have 10, 11, or 12 neutrons.

22. The rule that is most often used to solve this last problem is the even–odd rule. If the last digit to be retained is odd, then we increase it by one. If the last digit to be retained is even, then we keep it the same. 22. There is no theoretical principle that defines the even–odd rule. It simply means that we recognize that the original number is just as close to the higher number as it is to the lower number, and thus in half the instances we increase the last digit to be retained by one while in the other half we do not.

B. A few crystals of sugar dissolve in the water in a laboratory beaker. c. Alcohol, a liquid, changes to a vapor when heated. Which of the following represent a chemical change and which represent a physical change? a. Water is converted to steam by boiling. b. Carbon, a black powder, is converted to a colorless gas when reacted with oxygen. c. Salt completely dissolves in water to form a solution that looks like ordinary water. d. When the chemical mercury oxide is heated in a test tube, a ­silvery substance condenses near the top of the test tube.

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Basic Chemistry Concepts and Exercises by John Kenkel

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