A free radical is an atom or molecule that has an odd number of what?

More Questions:

In the culinary world, what does "Amuse-bouche" literally translate to in English?

Who wrote "Allegory of the Cave"?

Jefferson City is the capital of which US state?

The Wyandotte Cave is located in which US state?

In what country would you find the mouths of the Limpopo river?

How many liters is 1 quart?

How many Oscars did the 1997 movie "Titanic" win?

Who provides the voice for Abe Sapien in the 2004 movie "Hellboy"?

Before becoming Vice-President, Joe Biden represented what state in the US Senate?

Who was better known as Butch Cassidy?

In what year did Michelangelo finish painting the ceiling of the Sistine Chapel?

Who was the 13th President of the United States of America?

Who is Tony Chu’s partner in the comic series "Chew"?

Bugs Bunny was a satirical interpretation of what actor?

Which musician sang the song "Save Tonight"?