science

• balanced symbol equation between bromine and sodium

  br2 + 2na = 2NaBr
• balanced symbol equation between chlorine and calcium


  cl2 + ca = cacl2
• write a balanced equation for the reaction between chlorine and hydrogen

  h2 + cl2 = 2HCl
• write a word equation for the chemical reaction between potassium bromide and chlorine

  potassium bromide and chlorine = potassium chloride + bromine
• write the balanced symbol equation for the reaction between bromine and potassium iodide

  Br2 + 2KI = i2 + 2KBr
• write the half equation for the displacement reaction between chlorine and potassium bromide

  overall equation:cl2 +2KBr = Br2 + 2KCl

  reduction : cl2 + 2e- = 2cl-

  oxidation 2br- = br2 + 2e-