Answers edited by Simon Moore

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