Which portion of the compound lithium nitrate, #LiNO_3#, is a covalently bonded polyatomic ion?

Answer 1

#"Lithium nitrate"# features the #Li^+# ion..........

with a #"nitrate counterion"#, #NO_3^-#.

The Lewis structure of nitrate features THREE formally charged atoms......i.e. a quaternized nitrogen #stackrel(+)N#, and two oxygen anions..............of course the formal charge is still #-1#.

#""^(-)O-stackrel(+)N(=O)-O^-#, and of course the negative charges are distributed all over the molecule. VESPER predicts a trigonal planar geometry for the 12 electron pairs......Clearly the nitrate ion is covalently bound, and its Lewis structure reflects this.

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Answer 2

Natalie Anton

The nitrate ion (NO3^-) is the polyatomic ion found in lithium nitrate (LiNO3).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.