Chemical Principles Assignment Example | Topics and Well Written Essays - 1250 words

Chemical Principles - Assignment Example (a) ClOF4- Cl has 7 electrons in its outer most shell. 5 electrons shared with the atoms around it while there is one lone pair. This means that there are a total of 6 electron domains. Therefore the shape is square pyramidal and the hybridization is sp3d2. (b) (CH3)2TeCl2 It has 6 electrons in its outer most shell. 4 of them are shared with the molecules around it while 2 are the lone pairs. This indicates that there are a total of 5 electron domains. Therefore Te has an sp3d hybridization having the molecular shape of see-saw. And a bond angle of 90 and 120. (c) ICl2- The ICL2- molecule has I as Iodine has Iodine as its central atom. The iodine molecule has 7 electrons, two of which have been donated to the Cl molecules satisfying their octet. The iodine has a negative charge, meaning that it also has eight electrons. 3 lone pairs and one shared with each chlorine. The total electron domains are hence 5 indicating that Iodine has an sp3d hybridization. The shape hence becomes linear with the angle approximately equal to 180o. NOTE: Some of the answers to this section REQUIRE structural formulae drawn in Symyx Draw (freeware available from the Accelrys website). There is a tutorial in the Organic folder of the Chemical Principles module in Blackboard to assist in learning how to use Symyx

Spoken and Written Language, the Dual Route Model Case Study

Spoken and Written Language, the Dual Route Model - Case Study Example 1197). Thus, Coltheart and Rastle attempt to offer evidence to the utility of dual-route theory in analyzing the reading performance of young normal readers as well as children with reading impairment. Another significant article on the applicability of dual-route theory, Rapcsak, et al. offer establish with evidences that dual-route equation as well as a related multiple regression model can â€Å"accurately predict both reading and spelling performance in adult neurological patients with acquired alexia and agraphia. These findings provide empirical support for dual-route theories of written language processing.† (Rapcsak, Henry, Teague, Carnahan, and Beeson, 2007, p. 2519). Therefore, both the articles deal with the effectiveness of dual-route models to analyze the reading performance of people with reading impairment, although the strategy as well as the focus of these articles differs. It is essential to realize that both the articles deal with scientific studies about th e usefulness of dual-route models and they offer detailed information about the participants of the study, including the age, speech and language abilities, cognitive status of the participants, etc. In short, the articles deal with a common topic, i.e.