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Unformatted text preview: 2+ O 2-: 1s 2 2s 2 2p 6 Na: 1s 2 2s 2 2p 6 Na + Al 3+ : 1s 2 2s 2 2p 6 4. Rank the species in #3 in order from largest to smallest: (1 point) O 2-> Na + > Ca 2+ > Al 3+ See figure 8.29 on page 320 in your book for more info. 5. Fill in the blanks with the appropriate number (0.5 points) 5 Total number of atoms in one molecule of CH 4 12 Number of oxygen atoms in one formula unit of Pb 4 SO 4 (CO 3 ) 2 (OH) 2 3 Number of sulfate ions in one formula unit of Fe 2 (SO 4 ) 3 6. Of the compounds below, which contain ionic bonds, which contain covalent bonds, and which contain both ionic and covalent bonds? (1 point) a. CoCl 2 ionic b. PCl 5 covalent c. LiF ionic d. CaCO 3 both 7. Draw the Lewis structure for each substance below. (2 points) HF N 2 NaCl H 2 O H F N N Na Cl H O H NH 4 + CH 3 OH N H H H H C O H H H H...
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This homework help was uploaded on 04/20/2008 for the course CHEM 111 taught by Professor Grzegorz during the Spring '08 term at Colorado State.
- Spring '08