Answers edited by Truong-Son N.

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• In a vacuum, will a heated solid sublime?
  
• What is an example of an electron configurations practice problem?
  
• How do you solve for the energy difference between #n = 1# and #n = 2# in hydrogen atom?
  
• What is the pressure of a gas in #"atm"# if its pressure is #"85 kPa"#?
  
• What is the derivative of #-cosx*ln(secx+tanx)#?
  
• Why is mass spectrometry useful?
  
• How do you calculator the derivative for #(2x-5)/(x^(2)-4)#?
  
• What does calculus describe?
  
• How to do without quadratic formula? For the reaction #"CO"(g) + "NH"_3(g) rightleftharpoons "HCONH"_2(g)#, #K_c = 0.620#
  
• Are solubilities of solids linear with temperature?
  
• How do you show that ice is more efficient at cooling water down than water is?
  
• What is #lim_(x->pi//4) (2 - tanx)^(1/(ln(tanx)))#?
  
• Why is the Heisenberg uncertainty principle not significant when describing macroscopic object behavior?
  
• What does "calx" mean in oxidation reduction reactions?
  
• How do you differentiate #ysinx=y#?
  
• How does enthalpy change differ from heat flow?
  
• How do you locate the discontinuities of the function #y = ln(tan(x)2)#?
  
• Which of the following are liquid at a room temperature and how can you tell? I, Br, Ne, Pb, Hg.
  
• How do you calculate specific heat capacity given heat flow, mass and temperature change?
  
• A laboratory procedure calls for making 600.0mL of a 1.1M #KNO_3# solution. How much #KNO_3# in grams is needed?
  
• How does calculus relate to chemistry?
  
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