Answers created by Hossam Eldeen Ahmed

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• How is the equivalent weight of As2S3 related to its molecular weight in the following reaction : As2S3 + H+ + NO3- ------> NO + H2O + AsO4 3- + SO4 2- ?'
  
• [MULTIPLE CHOICE QUESTION]: Carbon dioxide gas in most soluble in water under conditions of?
  
• What is the direction of reaction when chlorine gas is added to an equilibrium mixture of #PCl_3+# #PCl_5+# and #Cl_2+#? The reaction is #PCl_3(g)# + #Cl_2(g)# #rightleftharpoons# #PCl_5(g)#
  
• A #"140.5-g"# sample of #"NiSO"_4 * x "H"_2"O"# was heated until no further decrease in mass was observed. The mass of the anhydrous (dry) salt is #"77.5 g"#. Determine the value of #x# in the formula?
  
• What is order of reaction h2+cl2=2hcl?
  
• When grignard reagent react with ethanol which product is formed?
  
• What will produce and happen to the color if I add more NaOH in CaCl2 and ZnCl2?
  
• When NaBr(s) is added to a solution of CuSO4 and water, what color should it change? Why would AgBr(s) not produce a color change in the same solution?
  
• Hydrogen sulfide is oxidized by chlorine in aqueous solution. H2S(aq) + Cl2(aq)?> S(s) + 2HCl(aq) The experimental rate law is Rate = k[H2S][Cl2] ?
  
• Why hydrogen is easily displaced by metal from acid?
  
• How would you name the following aromatic hydrocarbon?
  
• Question #8d3ca
  
• Question #f8722
  
• Question #d7b43
  
• Question #19e66
  
• Why is benzene an aromatic hydrocarbon?
  
• What aromatic compounds are used in explosives?
  
• Why is the boiling point of iron higher than magnesium ?
  
• What are the heteroarenes compounds?