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Author Question: Briefly explain why carbon and silicon can form oxides with such different physical properties, ... (Read 81 times)

jilianpiloj

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Briefly explain why carbon and silicon can form oxides with such different physical properties, gaseous CO2 and solid SiO2.
 
  What will be an ideal response?

Question 2

How many grams of AgNO3 are needed to make 250. mL of a solution that is 0.135 M?
 
  A) 0.0917 g
  B) 0.174 g
  C) 5.73 g
  D) 9.17 g



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ASDFGJLO

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Answer to Question 1

Carbon atoms are small enough to form  bonds with oxygen due to the overlap of p orbitals, resulting in the formation of double C O bonds. Consequently, CO2 forms individual molecules that interact with each other via weak London dispersion forces. Silicon atoms are too large and form only single bonds with oxygen, four such bonds per each silicon atom, with each oxygen atom bridging between two silicon atoms, resulting in a covalent-network solid.

Answer to Question 2

C




jilianpiloj

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Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review


carlsona147

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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