Answers edited by Simon Moore

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