Lewis Dot Structure

What is the correct Lewis Dot Structure for ammonia NH3

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Which is the correct molecular structure for carbon dioxide?

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Which of the following is the correct Lewis structure for water?

• A
• B
• C

Which of the following is the correct Lewis structure for the compound PBr₃?

• structure A
• structure B
• structure C
• structure D

What is the correct formula for this molecule?

• Si₄F
• SiF₄
• SiF
• Si₄F₄

NH₃ has how many lone pairs?

• 0

• 1

• 2

• 3

CCl₄ has how many double bonds?

• 0

• 1

• 2

• 3

3. Which is a correct Lewis structure for hydrogen cyanide, HCN?

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

• There are too many bonds around Si.

• There should only be single bonds in this Lewis Structure.

• The Structure is missing a triple bond.

• Chlorine only has 6 electrons surrounding it.

CO₂ has how many lone pairs?

• 0

• 1

• 2

• 3

• 4