Answers edited by Edmund Liew

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• Question #8b7ec
  
• What is percent composition of ethanol ( `C_2H_5OH` )?
  
• What is the standard form of `y= (x+7)(x-8)^2`?
  
• How many moles of oxygen gas will be formed from 6.45 g of potassium chlorate?
  
• How many molecules are present in 1296 g of dinitrogen pentoxide `N_2O_5`?
  
• What is the molecular formula of a compound if its empirical formula is `CFBrO` and its molar mass is 381.01 g/mol?
  
• Question #85ee6
  
• What is the name of `AlCl_3`?
  
• How many grams of `O_2` are in 5.0 mol of the element?