ERHS Chem Tri 2 Final Exam Review

Which molecule is non-polar?

• CH₄
• H₂O
• NH₃
• CH₂O

Give the formula for phosphorus trifluoride

• P₃F
• PF
• PF₃
• P₃F₃

How many valence electrons does carbon have?

• 1
• 2
• 3
• 4

Write the formula for Dinitrogen Pentaoxide.

• N₅O₂
• N₂O₅
• (N₂O)₅
• O₅N₂

Which of the following is an example of a covalent compound?

• H₂S
• KI
• CaCl₂
• MgO

What is the shape of this molecule?

• bent
• linear
• trigonal pyramidal
• tetrahedral

What is the shape of this molecule?

• linear
• bent
• tetrahedral
• trigonal planar

Which of the following bonds would be considered non-polar covalent?

• C-O
• Li-Br
• F-F
• N-H

Which Lewis Dot Model drawing correctly shows an O₂ molecule?

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What is the VSEPR shape of H₂S?

• linear

• trigonal planar

• bent

• tetrahedral