Answers edited by Simon Moore

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• Question #e788e
  
• Question #87757
  
• What are the differences between hydration, hydrolysis and condensation?
  
• Question #80627
  
• What is the difference between an electrophilic substitution reaction and a nucleophilic substitution reaction?
  
• Question #ebf5e
  
• Question #ce94f
  
• On a mountaintop, it is observed that water boils at 90°C, not at 100°C as at sea level. Why does this phenomenon occur on the mountaintop?
  
• How does plastic benefit and harm the environment?
  
• Question #73746
  
• Question #b65fa
  
• A #"standard solution"# is #"aqueous"#, #"unsaturated"#, #"a mother solution"#?
  
• Why can't we react francium with water?
  
• Question #edc6b
  
• Is there a membrane that stop liquid water but let Methane gas in?
  
• What is the pH of a #1*10^-5# #M# solution of sulfuric acid?
  
• Question #3c6f1
  
• When you blow air into a balloon, not only there will be increase in it's pressure but also it's volume. Is it a violation of Boyle's law?
  
• What volume of concentrated #HCl# contains a mass of #125*g# #HCl#?
  
• What is indicated by the #methyl-# prefix?
  
• Question #a9349
  
• What are the products when Alka Seltzer dissolves in water? Is it water and carbon dioxide, i'm not really sure with that
  
• Question #5f334
  
• What states of matter can flow?
  
• What is the difference between compounds and mixtures?
  
• Does pure water have more H+ ions than OH- ions?
  
• Question #42299
  
• The half-life of cobalt-60 is 5.2 years. Find the time it would take for a sample of 0.5 grams to decay to 0.1 gram?
  
• What is the highest point on earth?
  
• Consider a mixture of water, sand, and oil. How many phases are present? How could you separate mixture into individual substances?
  
• What volume of a #1.5*mol*L^-1# solution is required to deliver a #3.0*mol# quantity of solute?
  
• Question #2d155
  
• Is uranium a fossil fuel?
  
• Question #147e5
  
• All of the reagent solutions have a concentration of 0.2 M. This means that there is 0.2 mole of dissolved substance per liter of solution. What will be the concentration after mixing, assuming you use equal volumes of each solution?
  
• Why are resonance structures necessary?
  
• Question #2a46a
  
• What is a neat liquid?
  
• Question #f678c
  
• Any 3 reasons for profuse use of plastics although it is harmful?
  
• Silver emits light of 328.1 nm when burned. What is the energy of a mole of these photons?
  
• Question #0ae32
  
• Why is an alkyl group is denoted by #"R"#?
  
• How would I convert the following to ppm? 3 grams of lead found in 30kg of soil.
  
• What is the name of the compound # P_2O_5#?
  
• How many grams of water could be made from 5.0 mol #H_2# and 3.0 mol #O_2#?
  
• What are the advantages and disadvantages of emulsion polymerization as compared to bulk and solution polymerization?
  
• Why do bases feel slick in nature?
  
• How can I explain the enthalpy of a system?
  
• Question #ffab1
  
• How does the mass of the substance effect the specific heat value?
  
• How can you can tell the difference between a solution and a clear colloid?
  
• What are some examples of colloids and suspensions?
  
• One solution contains 55 g #NaCl # per liter. and another contains 55 g #KCl# per liter. Which solution has the higher molarity? How can you tell?
  
• What is laughing gas called? ?
  
• Question #39df6
  
• Question #f92a2
  
• Woollen clothes are biodegradable but nylon clothes are not. Why do you think is the case?
  
• Can a rubbing alcohol conduct electric current?
  
• What is an example of a colloid?
  
• Why do bases feel slippery?
  
• Question #ece79
  
• Is a suspension a homogeneous or a heterogeneous mixture?
  
• What is formal charge and how is it determined?
  
• Question #c2f50
  
• Question #68599
  
• Question #8af18
  
• Question #1e971
  
• Question #af560
  
• Does pure water have a concentration?
  
• How do you convert 2 tons to grams?
  
• What's one thing you like about Socratic?
  
• How much energy (in joules) is required to raise the temperature of 200g of liquid water from 20c to 50 c?
  
• What safety equipment should always be used when working with glass or chemicals?
  
• Why does the Antarctic have a large hole in the ozone, when no one even lives there?
  
• Why alkenes called olefins?
  
• Is combustion a physical or chemical change? Why?
  
• Why is cholesterol in the blood?
  
• Question #2a118