Answers edited by Simon Moore

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