Answers edited by Simon Moore

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