The scum formed when soap is mixed with hard water could be

Chemistry WAEC 1992

The scum formed when soap is mixed with hard water could be

  • calcium trioxocarbonate (IV) checkmark
  • propane- 1, 2, 3 - triol
  • calcium hydrogentrioxocarbonate (IV)
  • magnesium tetraoxosulphate (IV)
  • calcium stearate

The correct answer is: A

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