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Thabsolutenthalponeutraiatioothe reaction: MgO(s)+2HCl(aq)3/4→MgCl2(aq)+H2O(l) wilbe-

  1. 57.33kj mol1    
  2. 57.33kjmol1    
  3. Greaterthan–57.33kjmol1    
  4. Lessthan–57.33kjmol1    

The correct answer is: Greaterthan–57.33kjmol1

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The value of open vertical bar table row cell 1 to the power of 2 end exponent end cell cell 2 to the power of 2 end exponent end cell cell 3 to the power of 2 end exponent end cell row cell 2 to the power of 2 end exponent end cell cell 3 to the power of 2 end exponent end cell cell 4 to the power of 2 end exponent end cell row cell 3 to the power of 2 end exponent end cell cell 4 to the power of 2 end exponent end cell cell 5 to the power of 2 end exponent end cell end table close vertical bar is

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= open vertical bar table row 1 4 9 row 3 5 7 row 5 7 9 end table close vertical bar equals 1 left parenthesis 45 minus 49 right parenthesis minus 4 left parenthesis 27 minus 35 right parenthesis plus 9 left parenthesis 21 minus 25 right parenthesis
= negative 4 plus 32 minus 36 equals negative 8.
General
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Þ b to the power of 2 end exponent minus a c equals 0 Þ b to the power of 2 end exponent equals a c.