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Hi, this is Dr. B. Let's do the SO2 Lewis structure. On the periodic table: Sulfur, 6 valence electrons. Oxygen has 6. We have two Oxygens, though, for a total of 18 valence electrons....
This is the NO3- Lewis structure: the nitrate ion. Nitrogen has 5 valence electrons. Oxygen has 6, we have 3 Oxygens, and we need to add 1 for this valence electron up here. That gives us a total of 5...
>> GOOD AFTERNOON, WELCOME TO THE WEDNESDAY AFTERNOON LECTURE SERIES AND OF COURSE FOR THE NIH, I KNOW THE SHUT DOWN HAVOC WITH OUR SCIENCE HERE WE WISH WOULD HAVE NEVER HAPPEN BUT I...
>> THE PROBLEM WITH TETRALOGY OF FALLOT IS THAT THE ORIENTATION OF THE MUSCLE ON THE INSIDE OF THE HEART IS ABNORMAL. >> THE SEPTUM, THE PARTITION BETWEEN THE TWO...
CODY KIMMEL: Hi. My name is Cody Kimmel, and I'm the lead singer of the band Eliot Fitzgerald, and I'm here with the Expert Village to teach you how to write a folk song. Now...