Wrong question

• The reaction between bromine and potassium iodide solution is a displacement reaction. What is the correct description of this reaction

  bromine displace iodine
• Sample of calcium carbonate is heated and the mass of solid remaining is constantly decreasing explain why.

  • As there is a further reaction continues
  • Gas is produced and the amount of reactant falls
• State an advantage of using photoextraction than extract from it's ore

  allow use of low-grade ore and less carbon dioxide is produced and less noise due to mining
• What is the process called extracting liquid of different boiling point

  SImple distillation / fractional distillation (complex one)