Answers edited by Simon Moore

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