Questions asked by CopperKettle

• Back to user's profile
• NaOH + KMnO4: why doesn't it yield NaMnO4+KOH?
  
• How can we know beforehand that free chlorine will form in MnO2+4HCl -> MnCl2 +Cl2+2H2O?
  
• What is the oxidizing agent here?
  
• Why is this not possible? 2Cl2 + 4NaOH -> 4NaCl + 2H20 + O2
  
• I don't understand the hydrolysis of #Zn(NO_3)_2#: why will the solution be acidic?
  
• What difference is there between magnesium chloride reacting with zinc nitrate or potassium sulfate?
  
• Does this mean that SO2 grabs an Oxygen out of every second OH(-) group present in the solution?
  
• Why is energy being released when an electron is added to a neutral atom?
  
• Is there a way to calculate what the products will be for SO2+Br+H2O?
  
• How to convert a sulfate into a sulfide?
  
• Why #"Mg"^(2+) +2"e"^(-) -> "MgO"# ?
  
• Why does (or "do"?) Barium Oxide + Sulfuric Acid yield Ozone?
  
• Will ammonium sulfide #("NH"_4)_2"S"# decompose when heated? What will be the products?
  
• Why and how do we get #"NH"_4"NO"_3# when reacting very dilute #"HNO"_3# with #"Zn"#?
  
• Why do CaCO3 + CO2 + H2O form Ca(HCO3)2?
  
• How does this reaction occur? #2KO_2 + 2H_2O -> 2KOH + H_2O_2 + O_2­#
  
• How does Calcium Hypochlorite disinfect water?
  
• Why do we need Calcium hydroxide in concrete? Is it necessary there?
  
• How is the reaction between Aluminium and Mercury Chloride possible?
  
• Why is the nitrogen's lone pair part of sp2 orbital in pyridine but part of p orbital in pyrrole?
  
• Why do we multiply molar concentrations and not sum them, and why there's no squared sign here?
  
• How is the reaction between hydrogen sulfide and iron chloride possible?
  
• How does the reaction between formaldehyde and copper hydroxide take place?
  
• Why is the chloride ion shown as containing only 3 lone pairs?
  
• Why is this CH2 in the center marked as having a positive charge?
  
• How to obtain methanol from carbon monoxide using one of the five chemicals: H2, H2O, C2H4, C2H5OH, or CH4?
  
• How does the polarization of the carbonate ion make the thermal decomposition of CaCO3 more likely?
  
• Why is benzene separated from water using a separatory funnel?
  
• Which two of the oxides (CO2, SiO, BeO, NO, ZnO) react neither with KOH nor with HCl?