Answers edited by Truong-Son N.

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• What is electrolysis and how does it apply to water and salt?
  
• How do you find the cross product #<0,1,2>times<1,1,4># and verify that the resulting vectors are perpendicular to the given vectors?
  
• How do you solve #|x|-8=-5#?
  
• How can you neutralize alkoxide?
  
• What is the sum of the arithmetic sequence 136, 124, 112 …, if there are 36 terms?
  
• Why is the nitrogen's lone pair part of sp2 orbital in pyridine but part of p orbital in pyrrole?
  
• A cylinder with a moving piston expands from an initial volume of 0.250 L against an external pressure of 2.00 atm. The expansion does 288 J of work on the surroundings. What is the final volume of the cylinder?
  
• A sample of ammonia liberates 5.66 kJ of heat as it solidifies at its melting point. What is the mass of the sample? #DeltaH_(solid) # = -5.66 kJ/mol?
  
• What does water dissociate into?
  
• Consider a neutral atom with 30 protons and 34 neutrons. What is the atoms number of electrons?
  
• What is a disproportionation reaction?
  
• How do you solve #ln e^x -ln e^3 = ln e^9#?
  
• Are all ionic compounds soluble in water?
  
• How do you factor #x^2+3x-4#?
  
• Why can't we have half-reactions by themselves?
  
• How do I find the quotient and remainder using synthetic division?
  
• Conversion Methanol to tertiary butyl cyanide?
  
• How do I know which term symbols are acceptable for an #np^2# electron configuration? I found all of them, but which ones should I keep?
  
• Question #93d0a
  
• In a redox reaction, what do oxidation and reduction mean?
  
• When an electron jumps from a high energy state to a lower state, what form does the emitted energy take?
  
• How would you calculate #DeltaE# of a gas for a process in which the gas absorbs 35 J of heat and does 8 J of work by expanding?
  
• What is the half-life when the initial concentration is 0.51 M?
  
• How do you define oxidation and reduction?
  
• Can symbols have more than one meaning? How can you explain this?
  
• What role do elementary reactions play in determining reaction order with respect to each reactant? How is the mechanism related to how a rate constant for a complex reaction compares to that of a one-step reaction?
  
• How do you solve #m - 1 1/2 = - 5/4#?
  
• Which coefficients balance this equation? #?Al + ?O_2 -> ?Al_2O_3#
  
• How does an atomic spectrum get affected by external electromagnetic fields?
  
• For the reaction #X + Y -> Z#, the following data was obtained. Answer the following questions? Is there any missing info I need to do this?? What is the best way to learn kinetics?
  
• How do you write decimal notation for 5/6?
  
• How can oxygen make two single bonds?
  
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