Answers edited by Andy Wolff

• Back to user's profile
• Fires from combustible metals produce what type of fire?
  
• If a substance has a half life of one million years, how much of its will be left after three million years? After four million years?
  
• Question #b171f
  
• How much energy, in joules, must be absorbed if all the `O_3` molecules in the sample of air are to dissociate? Assume that each photon absorbed causes one `O_3` molecule to dissociate, and that the wavelength of the radiation is 254 nm.
  
• Question #25fad
  
• What is an acetyl group?
  
• Suppose light travels 1.5 times faster in a vacuum than it does in glass. What is the index of refraction for glass?
  
• How much energy, in joules, must be absorbed if all the `O_3` molecules in the sample of air are to dissociate? Assume that each photon absorbed causes one `O_3` molecule to dissociate, and that the wavelength of the radiation is 254 nm.
  
• Question #c1228
  
• How do ionic compounds conduct electricity in water?
  
• How does electron configuration effect electronegativity?
  
• How do you write positron decay?