Bonding, Geometry, and Hybridization

The Lewis structure of the CO₃^2- ion is

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Tags

NGSS.HS-PS1-2

Resonance structures differ by __________.

• number and placement of electrons

• number of electrons only

• placement of atoms only

• number of atoms only

• placement of electrons only

As the number of covalent bonds between two atoms increases, the distance between the atoms ______ and the strength of the bond between them ______.

• increases, increases

• decreases, decreases

• increases, decreases

• decreases, increases

• is unpredictable

The ion NO- has _____ valence electrons.

• 10

• 12

• 14

• 15

• 16

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The formal charge on carbon in the molecule shown is _______.

• 0

• +1

• +2

• +3

• -1

Tags

NGSS.HS-PS1-2

The electronegativity of C is 2.5, F is 4.0.  predict the character of a C-F bond.

• polar covalent
• nonpolar covalent
• ionic
• metallic

Tags

NGSS.HS-PS1-1

In this Lewis structure, the symbol above F means...

• electrons are being transferred to Fluorine
• electrons are less attracted to F than H
• electrons are more attracted to F than H
• Fluorine has formed a cation

Tags

NGSS.HS-PS1-1

Partial charges like the ones shown here are called:

• dipoles
• deltas
• ions
• magnetic poles

The electronegativity difference in the bonds of CH4 (methane) is:

• 0.4
• 5.9
• -0.4
• 1.7

Tags

NGSS.HS-PS1-1

Which of the following images represents a Trigonal Planar molecular geometry?

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