Questions 1 through 8 refer to the group of structures shown on the left. Enter appropriate letters from A through K in each answer box. If no structure fits the property enter the letter X.
Do not enter superfluous characters, since they will be counted as incorrect answers..

		Which structures satisfy the following conditions?
		1.	No formally charged atoms are present in the structure.
		2.	At least one nitrogen has a (+) formal charge.    ......
		3.	At least one nitrogen has a (–) formal charge.     ......
		4.	At least one oxygen has a (+) formal charge.     ......
		5.	At least one oxygen has a (–) formal charge.     .......
		6.	At least one carbon has a (+) formal charge.     .......
		7.	At least one carbon has a (–) formal charge.     .......
		8.	At least one sulfur has a (+) formal charge.     ........

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