DK014 : 7.0 CHEMICAL BONDING

This is the correct dot diagram for sodium (Na)

• true
• false

Tags

NGSS.HS-PS1-1

This is a correct dot diagram for oxygen (O)

• true
• false

Tags

NGSS.HS-PS1-1

How many total valence electrons does the Lewis structure for NO₃ ^- have?

• 23

• 20

• 18

• 24

Calculate the Formal Charge for the Nitrogen

• -1
• +1
• 0
• -2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the formal charge for each of the Fluorine atoms

• -1
• +1
• 0
• +2

Tags

NGSS.HS-PS1-1

VSEPR stands for ________ theory.

• Valence Structure of Electron Pyramids and Regression
• Varied Structures of Electrons Paired and Replaced
• Varied Shell Energy of Protons and Radiation
• Valence Shell Electron Pair Repulsion

What would be the bond angle between atoms in this molecule?

• 180

• 120

• 90

• 109.5

Which of the following is a polar molecule?

• CH₄
• Xe
• H₂O
• CO₂

Tags

NGSS.HS-ESS2-5

Which formula represents a nonpolar molecule?

• CHBr₃

• CH₂Br₂

• CH₃Br

• CBr₄

The polarity of a bond is determined by...

• The sum of the electronegativities of the two atoms

• The difference in the electronegativities of the two atoms

• The charges of the atoms

• None of the Above