Questions asked by Adrone

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• Why is Ra-226 is more radioactive than U- 238? "Radioactive decay" states an unstable nucleus (U- 238) forms a more stable nucleus (Ra- 226) by the release of high energy particles and radiation?
  
• Could bateria be biocatalysts, such as the lactic acid bacteria that produce lactic acid?
  
• Titration, please explain why?
  
• Water-displacement method?
  
• Chemistry calculation help?
  
• Verify the identity?
  
• Expand #sin^6 x#?
  
• What is the dissociation equation of Al2Cl6(s)?
  
• What is the mass of 4.18 equiv Mg(OH)2 in a complete neutralization reaction?
  
• Explain where I did it wrong: The entropy change for the decomposition of 1 mol of KClO3 is 494J at 25celsius. Calculate the entropy value for O2 if the entropy value for KClO3 and KCl are 143 J/mol-K and 82.6 J/mol-K, repspectively? 2KClO3 --> 2KCl+3O2
  
• Balance: H2C2O4(aq) +K2CrO4(aq) + HCl(aq) →CrCl3(aq) + KCl(aq) + H2O(l) +CO2(g)?