Answers edited by Simon Moore

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