Answers edited by A.Raz

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• What is the mass of #4.22 x10^23# atoms of lead (Pb)?
  
• Question #67d90
  
• Question #c79b3
  
• Question #26832
  
• How many atoms are there in one mole of carbon monoxide?
  
• Question #2dc68
  
• A solution is another name for what?
  
• What is the Cartesian form of #(-23,(5pi)/16))#?
  
• Question #a2af6
  
• What are the critical points of #f(t) = tsqrt(2-t)#?