Hard Water 2.0 / 5 based on 1 rating ? ChemistryWater hardness and solubilityGCSEAQA Created by: BeckyCreated on: 26-03-13 18:25 When is scum formed? When soap reacts with dissolved compounds in hard water. 1 of 4 How can hard water be made soft? By removing dissolved calcium and magnesium ions that react with soap. 2 of 4 What do hydrocarbonate ions decompose to form? Carbonate ions, carbon dioxide and water. 3 of 4 How can hardness from temporary hard water be removed? By boiling. 4 of 4
Comments
No comments have yet been made