Answers edited by Simon Moore

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