Concept explainers
Interpretation:
Out of the compounds
Concept Introduction:
In any polar covalent bond, the difference in electronegativities gives rise to partial positive and negative charges respectively on the cation and anions.
The covalent character is determined with respect to the relative extent of distortion of the anionic cloud of the anion. For instance, highly charged small alkali metal cation such as
The covalent or ionic character of a polar covalent bond is determined on the basis of difference in electronegativities. If the difference exceeds 2, the compound is regarded as predominantly ionic. If it is much than 2 it is regarded as covalent in nature.
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Chemical Principles: The Quest for Insight
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- With reference to the “Chemistry Put to Work” box on explosives, (a) use bond enthalpies to estimate the enthalpy change for the explosion of 1.00 g of nitroglycerin. (b) Write a balanced equation for the decomposition of TNT. Assume that, upon explosion, TNT decomposes into N2(g), CO2(g), H2O(g), and C(s).arrow_forwardKeeping in mind that some elements violate the octet rule, draw a Lewis structure for each compound: (a) BeH 2; (b) PCl 5.arrow_forwardChemical species are said to be isoelectronic if they have the same Lewis structure (regardless of charge). Consider these ions and write a Lewis structure for a neutral molecule that is isoelectronic with them. (a) CN–, (b) NH4+ (c) CO3 2–arrow_forward
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