110 chapter 3 chemical compounds chapter objectives

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110 Chapter 3 Chemical Compounds
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Chapter Objectives 111 13. Identify the most common number of covalent bonds and lone pairs for the atoms of each of the following elements: hydrogen, the halogens (group 17), oxygen, sulfur, selenium, nitrogen, phosphorus, and carbon. 14. Convert between the following systematic names and their chemical formulas: methanol, ethanol, and 2‑propanol. 15. Given one of the following names for alcohols, write its chemical formula: methyl alcohol, ethyl alcohol, and isopropyl alcohol. 16. Given a chemical formula, draw a Lewis structure for it that has the most common number of covalent bonds and lone pairs for each atom. 17. Describe the tetrahedral molecular shape. 18. Explain why the atoms in the CH 4 molecule have a tetrahedral molecular shape. 19. Describe the information given by a space‑filling model, a ball‑and‑stick model, and a geometric sketch. 20. Draw geometric sketches, including bond angles, for CH 4 , NH 3 , and H 2 O. 21. Describe attractions between H 2 O molecules. 22. Describe the structure of liquid water. Section 3.4 Naming Binary Covalent Compounds 23. Convert between the names and chemical formulas for water, ammonia, methane, ethane, and propane. 24. Given a formula or name for a compound, identify whether it represents a binary covalent compound. 25. Write or identify prefixes for the numbers 1‑10. (For example, mono‑ represents one, di‑ represents two, etc.) 26. Write or identify the roots of the names of the nonmetallic elements. (For example, the root for oxygen is ox‑). 27. Convert among the complete name, the common name, and the chemical formula for HF, HCl, HBr, HI, and H 2 S. 28. Convert between the systematic names and chemical formulas for binary covalent compounds. Section 3.5 Ionic Compounds 29. Explain why metals usually combine with nonmetals to form ionic bonds. 30. Write the ionic charges acquired by the following elements: a. group 17 – halogens b. oxygen, sulfur, and selenium c. nitrogen and phosphorus d. hydrogen e. group 1 ‑ alkali metals f. group 2 ‑ alkaline earth metals g. group 3 elements h. aluminum i. iron, silver, copper, and zinc 31. Convert between the names and chemical formulas for the monatomic ions.
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Review Questions For problems 1‑6, write in each blank the word or words that best complete each sentence. 1. An atom or group of atoms that has lost or gained one or more electrons to create a charged particle is called a(n) _____________________. 2. An atom or collection of atoms with an overall positive charge is a(n) __________________.
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  • Fall '06
  • Mark
  • Atom, atoms, Chemical bond

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