Answers edited by Simon Moore

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