Write a Lewis structure for each of the following organic molecules:

(c) C_{2}Cl_{2}F_{4} (Freon 114: formerly used as a refrigerant and as an aerosol propellant; each carbon bears one chlorine)

Construct a Lewis structure for H_{2}O_{2}. Include all nonbonding electrons and formal charges. As a bonus, show the correct structural formula.

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What is the __total number of electron groups__ surrounding each nitrogen atom in the correct Lewis structure for **N _{2}F_{2}**?

A. 2

B. 3

C. 4

D. 5

E. 6

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What is the total number of electron groups surrounding the central carbon atom in the correct Lewis structure for CHF_{3}?

A. 2

B. 3

C. 4

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Construct a Lewis structure for NO _{2}F. Include all nonbonding electrons and formal charges.

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Draw a Lewis structure for the following species. Include all nonbonding pairs of electrons and any formal charges.

CH_{3}NO_{2}

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Construct ONE (1) Lewis structure for the formula C_{2}H_{7}ON. Include all lone pairs and formal charges .

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Which is an acceptable Lewis structure for diazomethane?

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Identify the lowest-energy Lewis structure for nitrogen oxide. (Formal charges not shown.)

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Which is an acceptable Lewis structure of CO (where formal charges are not shown)?

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Draw the structure of BH _{3}-THF.

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Draw the Lewis structure of acetaldehyde, CH _{3}COH, clearly indicating **all** bonding and non-bonding pairs of electrons.

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