Molecular Structure and Physical Properties Consider the following statements and determine which are true and which are...

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Chemistry

Molecular Structure and Physical Properties
Consider the following statements and determine which are trueand which are false.

true/falseÂ Â SeF₄ has a see-sawstructure.
true/falseÂ Â KrF₄ is a polar molecule.
true/falseÂ Â NO₃^- has threeresonance Lewis structures.
true/falseÂ Â Bond angles for IF₆⁺are 90 Â°.
true/falseÂ Â Selenium tetrafluoride (SeF₄) is anon-polar molecule.
true/falseÂ Â The formal oxidation state of anatom in a molecule (or molecular ion) can be calculated as:
**(the number of valence electrons on a free atom)minus (half the number of electrons in bonds to that atom)minus (the number of unshared electrons assigned to theatom in the molecule)**

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4.1 Ratings (756 Votes)

SeF4 has a seesaw structure True because its an SP3D seesaw Its shape is in the gaseous phase which is similar to that of SF4 having a nonsymmetrical seesaw shape that would make the molecule polar KrF4 is a polar molecule False because Although the four bonds of the krypton tetrafluoride KrF4 are polar it has a symmetrical square planar structure and the bond polarity is cancelled by the symmetry making it nonpolar See Answer

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