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Unformatted text preview: HW13 (Homework) BARAKAT FARRIS CH101, section 003, Fall 2008 Instructor: Lori Petrovich Web Assign Current Score: 4.91 out of 5 Due: Friday, October 17, 2008 11:59 PM EDT Description Title: Solid Types Chapter 8 Solid Materials Instructions The question submission scoring is as follows: Correct on first submission: full points Correct on second submission: full points Correct on third submission: full points Correct on fourth submission: 90% of points Correct on fifth submission: 80% of points Do NOT press 'submit all questions" when you are finished. This will do exactly as indicated, and submit all questions, reducing your score. The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. 0.55/0.55 points | 2/5 submissions A compound formed between calcium, titanium, and oxygen crystallizes in the perovskite structure shown below. Ca 2+ cations (white circles) reside on the corners of the unit cell, the Ti 4+ cation (black circle) resides in the body center of the cubic cell, and O 2- anions (gray circles) reside on each of the cell faces. What is the formula of the compound? Write the elements in the order Ca, Ti, O....
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This note was uploaded on 01/25/2011 for the course CH 101 taught by Professor Bigham during the Spring '08 term at N.C. State.
- Spring '08