Answer to Question #204756 in General Chemistry for Master j

Question #204756

i. State THREE (3) properties of covalent compounds.

ii. Draw the Lewis structure for the molecule of ammonia (NH3).

iii. State the geometry of, and the bond angles in, the ammonia (NH3) molecule.

iv. PH3 has the same geometry as NH3, however, the bond angle in PH3 is less than that in NH3. Provide an explanation for this observation. 


1
Expert's answer
2021-06-11T07:54:56-0400
Message #1

1)Covalent Molecule has low melting point and low boiling point

2) low heat of vaporisation

3)they tend to be soft

Iii) geometry of Nh3 is tetrahedral and bond angle is 107°9"

Iv)Nh3 bond angle is greater than ph3 because of high electronegative of nitrogen while in ph3,p has less electronegative

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