U7 Test Review

The Lewis Dot structure for Oxygen shows ___ valance electrons. Of these, ___ are paired, and ___ are unpaired. Oxygen forms ___ covalent bonds.

• 6, 2, 4, 2

• 6, 2, 2, 2

• 4, 2, 1, 4

• 4, 1, 2, 4

Based on the Lewis Dot Structure for the element Oxygen, how many covalent bonds would the O₂ molecule have? The Oxygen molecule (O₂) make up approximately 19% of our atmosphere.

• 1

• 2

• 3

• 4

A formula with the lowest whole # ratio of elements in a compound is called

• Molecular Formula
• Chemical Formula
• Empirical Formula 
• Distance Formula

A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called_________

• ionic formula
• covalent formula
• empirical formula
• molecular formula

Which molecule would have this molecular geometry?

• BF₃
• CH₄
• PCl₅
• BeCl₂

What is this shape called?

• Trigonal Planar

• Tetrahedral

• Trigonal Pyramidal

• Bent

Who could this molecule be?

• CH₄
• CO₂
• PCl₅
• BF₃

What shape would this have?

• Trigonal planar

• Pyramidal

• Tetrahedral

• Bent

What is the correct Lewis Dot Structure for ammonia NH₃

• 
• 
• 
• 

What is this shape called?

• Linear

• Trigonal Planar

• Tetrahedral

• Bent