Answers created by R V SUBBARAO

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• What is the molar ratio for the chemical reaction `Al + O_2 -> Al_2O_3`?
  
• What does `((1+i)*(6-2i))/(4i)` equal?
  
• Question #5c32b
  
• What is an example of a fission practice problem?
  
• What is the hybridization at the two central carbon atoms of 2-butene?
  
• What are the four structural isomers of the alcohol with molecular formula C4H9OH?
  
• How much water must be evaporated from 100 gallons of a 10% brine (saltwater) solution to get a 40% brine (saltwater)?
  
• How do you solve `sqrt(4y+21)=y`?
  
• How do you solve `sqrt(4y+21)=y`?
  
• How do you combine `4sqrt20-sqrt45+7sqrt5`?
  
• What is the basic difference between Fluorescence and Phosphorescence?
  
• How do you solve `sqrtx- sqrt(x-5)=1`?
  
• Question #8ce8a
  
• Question #57b5a
  
• Question #75d62
  
• How do you solve `(sqrt(3))^(2x+4)=9^(x-2)`?
  
• How do you solve `sqrt(x+2)=4`?
  
• Question #4a60a
  
• Question #31f57
  
• Question #b9d31
  
• How can solubility be changed?
  
• Question #b908c
  
• Question #8097e
  
• Are all exothermic reactions spontaneous?
  
• Why is the oxidation number method useful?
  
• A sample of a compound contains `"0.672 g Co"`, `"0.569 g As"`, and `"0.486 g O"`. What is its empirical formula?
  
• What is an example of a stoichiometry of reactions between ions in solutions practice problem?
  
• If the percent yield for the following reaction is 65.0%, how many grams of KClO3 are needed to produce 42.0 g of O2? 2 KClO3(s) → 2 KCl(s) + 3 O2(g)
  
• Are the equation y = 3x + 7 and y = -3x + 7 parallel?
  
• Question #6d5c3