Chapter 29- Water Hardness Flashcards Preview

Chemistry > Chapter 29- Water Hardness > Flashcards

Flashcards in Chapter 29- Water Hardness Deck (4)
Loading flashcards...
1

How is hard water formed

Passed through limestone and picks up calcium and magnesium ions

2

Problems of hard water

Ðeposits limescale

Solved by
Boiling
Distillation
Ion exchange

3

Describe ion exchange

Hard water passed down through ion exchanger

Calcium ions are swapped for sodium ions

Soft water comes out (containing sodium ions)

4

Hard water

Water that does not lather with soap

Instead forms scum

Caused by calcium and magnesium ions