Questions asked by Kha L.

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• Why do some chemistry questions say "assume there is excess [x]"?
  
• Which of the following gases has the highest average speed at 400K?
  
• What reagent could NOT be used to separate #OH^-# from #Cl^-# when added to an aqueous solution containing both?
  
• Does CH3CH2CH2CH2CH2CH3 or (CH3)3CCH2CH3 have stronger intermolecular forces?
  
• How do I solve #int_0^1sin(x)/(sin(x)+sin(1-x))dx#?
  
• There is a square pyramid with its vertex on bottom. Its base is #12# #meters# on each side. Its height is #4# #meters#. It is being filled with water at a rate of #9# #m^3#/#min#. How fast is the depth of the water growing when the depth is #2# #meters#?
  
• Why isn't #dy/dx = 3x + 2y# a linear differential equation?