By John Kenkel
Chemistry could be a daunting topic for the uninitiated, and all too frequently, introductory textbooks do little to make scholars suppose comfy with the complicated subject material. Basic Chemistry options and routines brings the knowledge of John Kenkel’s greater than 35 years of training adventure to speak the basics of chemistry in a realistic, down-to-earth manner.
Using conversational language and logically assembled snap shots, the ebook concisely introduces every one subject with no overwhelming scholars with pointless aspect. instance difficulties and end-of-chapter questions emphasize repetition of recommendations, getting ready scholars to turn into adept on the fundamentals earlier than they development to a sophisticated basic chemistry path. stronger with visualization suggestions equivalent to the 1st chapter’s mythical microscope, the publication clarifies demanding, summary rules 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 routines so scholars can fee their paintings and obtain fast suggestions as to if they've got accurately grasped the strategies ahead of relocating directly to the subsequent part. Designed to assist scholars embody chemistry no longer with trepidation, yet with self belief, this strong preparatory textual content kinds an organization origin for extra complicated chemistry training.
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Additional info for Basic Chemistry Concepts and Exercises
In this type of situation, to make the number more manageable, we move the decimal point to the left such that it is immediately to the right of the nonzero first digit. Of course, each time the decimal point is moved by one digit, we are dividing the number by 10. To avoid altering the numerical value of the number, we multiply the resulting number by 10. 23 × 105 The exponent of the 10 in this notation is the number of places we moved the decimal point. 3 Rules for Significant Figures It is important to be able to count the number of significant figures, or sig figs, in a given number.
Any zero to the right of nonzero digits and also to the right of a decimal point is significant. 10 4 sig figs 5. Any zero to the right of nonzero digits and to the left of a decimal point and not covered by Rule 2 may or may not be significant, depending on whether the zero is a placeholder or is actually part of the measurement. Such a number should be expressed in scientific notation to avoid any confusion. ) 2 2 Note: sig fig = significant figure. installing a new carpet in their living room.
A. Atom b. Molecule c. State whether each of the following represents an atom, molecule, or ion. a. Se b. CCl4 c. HCO3 d. C6H6 e. Pb f. What is a formula unit? How is it used in chemistry? What is the difference between an atom and a molecule? Define each of the following terms. a. Mass b. Atomic mass unit c. Atomic weight d. Complete the following tables. What is an isotope? How does one isotope of an element differ from another isotope of the same element? Fill in the blanks. a. The symbol for the element with atomic number 54 is .
Basic Chemistry Concepts and Exercises by John Kenkel