Answers edited by Simon Moore

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