Answers edited by Simon Moore

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