Why hardness is calculated in terms of CaCO3?

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  1. #amount
  2. #expressing
  3. #carbonate
  4. #hardness
  5. #therefore
  6. #calculate
  7. #terms
  8. #calcium
  9. #expressed
  10. #molecular
  11. #water
  12. #weight
  13. #insoluble
  14. #because
  15. #100gm
  16. #reason