Covalent Bonding and Electron Dot Structures

If the calculated ΔEN for a bond is 0.81 the bond would be...

• Ionic

• Polar covalent

• Non polar covalent

How many NON BONDING electron domains are around the central atom?

• 0

• 2

• 3

• 4

What is the molecular geometry of SO₂? Note: count the electron domains on S.

• Linear

• Trigonal Planar - Bent

• Tetrahedral - Bent

• Trigonal Pyramidal

Tags

NGSS.HS-PS1-2

Is this molecule symmetrical or asymmetrical?

• Asymmetrical

• Symmetrical

What molecule below could be polar if it has polar bonds? Think about the symmetry of the molecule.

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Why is this Lewis Structure incorrect? Select all that apply.

• H atoms can only form single bonds before their octet is fulfilled.

• There must be a triple bond between C and N to fulfill the octet of all atoms.

• Not enough valence are pictured in the diagram.

• Hydrogen needs more electrons.

• Carbon is missing a lone pair in order to satisfy it's octet.

Tags

NGSS.HS-PS1-2

What is the correct structure for BF₃?

• Option A.

• Option B. 

• Option C.

• Option D.

What is the correct Lewis Dot Structure for ammonia NH3

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• 
• 
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Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is a property of molecular (covalent) compounds?

• High melting and boiling points

• Conduct electricity in solid state

• Low melting and boiling points

• Form ionic bonds

Tags

NGSS.HS-PS1-1

Why can hydrogen never have more than 2 electrons around it?

• Because hydrogen can only form one bond

• Because hydrogen has only one electron

• Because hydrogen's valence shell can only hold 2 electrons

• Because hydrogen is a noble gas