Answers edited by Truong-Son N.

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• What is the name of the compound whose formula is #H_2SO_4#?
  
• What allows sigma bonds to overlap?
  
• How many moles of Bromine are present in a 500 mL container at STP?
  
• Which of these is true for ideal gases?
  
• What is the oxidation state of the iron center in #["Fe"("H"_2"O")_5"NO"]"SO"_4#?
  
• If the poH of a solution is 10, what is the pH of this solution? Is this solution acidic or basic?
  
• Using Raoult's law... and knowing that #A# and #B# form an ideal binary mixture but #R# and #S# have negative deviation...?
  
• How do I determine entropy change between two states if given the two temperatures and the two pressures?
  
• Is rain water heterogeneous or homogeneous?
  
• MO diagram of #"B"_2"H"_6#?
  
• ¿¿¿Qué típos de soluciones el vídeo describe???
  
• According to the Bohr model for the hydrogen atom, how much energy is necessary to excite an electron from n=1 to n=2?
  
• What is the net ionic reaction for the acid-base reaction of #"HCl"# with #"NaNO"_3#?
  
• What is the order of the reaction #A -> B# if changing the concentration of #A# from #"0.05 M"# to #"0.1 M"# changes the rate from #2 xx 10^(-3) "M/s"# to #1.6 xx 10^(-2) "M/s"#?
  
• Does entropy increase or decrease during transformation of egg into chicken?
  
• For what temperature value are the celsius value and the Fahrenheit value the same?
  
• What is the definition of entropy?
  
• Why can you calculate the total pressure of a mixture of gases by adding together the partial pressures of the component gases?
  
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