3.06 Compounds Essay

648 WordsJul 13, 20143 Pages
03.06 Covalent Bonding and Lewis Structures: Pre-Lab and Rubric Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Research the answers to the following questions on the internet and write your answers in your own words. For each answer, include the address of the web site (or title and author of a book or article) that you used to help you answer the question. Which type of compound usually has higher melting points: ionic compounds or covalent compounds? What is the reason for this difference in melting points? (3 points) Ionic compounds have higher melting and boiling points than covalent compounds. This is because the electrostatic attraction in an ionic bond is very strong which means lots of heat energy is needed to break it down. Ionic bonds have high melting and boiling points. On the other hand covalent bonds, the intermolecular forces are very weak and is easily broken,hence lesser heat is required and thus covalent bonds have lower melting and boiling points. Do ionic compounds conduct electricity as: (3 points) Solids? No Liquids? Yes Aqueous solutions (when the ionic compounds are dissolved in water)? Yes Do covalent compounds conduct electricity as: (3 points) Solids? No Liquids? No Aqueous solutions (when the covalent compounds are dissolved in water)? No 03.06 Covalent Bonding and Lewis Structures: Lab and Rubric Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Part I: Lab Insert completed data tables for each part of the lab. Be sure that the data tables are organized and include units when necessary. Melting Point (4 points) White Substance- 600c (no melt) White Substance- 180c (melted) Blue Substance- 600c (changed color but didnt

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