Answers edited by Simon Moore

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