7C Exam Review

What is the correct Lewis Dot Structure for ammonia NH₃

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Which is the correct molecular structure for carbon dioxide CO₂?

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Tags

NGSS.HS-PS1-2

CCl₄ has how many double bonds?

• 0

• 1

• 2

• 3

Tags

NGSS.HS-PS1-1

In HCN how many total electrons will there be in the drawing? (Hint: A column)

• 14

• 18

• 10

• 4

Tags

NGSS.HS-PS1-1

Which of the following elements are an exception to the octet rule and require less than 8 valence electrons?

• H only needs 2

• Li only needs 3

• B only needs 6

• C only needs 4

Tags

NGSS.HS-PS1-1

What is the correct Lewis Structure for the bond between Mg and Cl?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct formula for this molecule?

• Si₄F
• SiF₄
• SiF
• Si₄F₄

Tags

NGSS.MS-PS1-1

Which Lewis Dot Model drawing correctly shows an O₂ molecule?

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How many total valence electrons are participating in bonding in the molecule above?

• 8

• 4

• 2

• 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Covalent compounds

• contain a sea of electrons

• share electrons

• transfer electrons

• conduct electricity

Tags

NGSS.HS-PS1-2