Softening Hard Water Flashcards
1
Q
What type of rock is hard water created over?
A
Sedimentary
2
Q
How do you remove temporary hardness?
A
Boiling
3
Q
What are the problems with boiling temporary hard water?
A
Not good for large scale because it’s expensive
4
Q
Name the two ways you can remove permanent hardness?
A
Washing soda
Ion exchange column
5
Q
What happens in the reaction between permanent hard water and washing soda?
A
The washing soda in sodium carbonate so the calcium ions react with the spline carbonate ions to precipitate out a insoluble calcium carbonate which is scale so it forms scale quickly before it can react and set on appliances
6
Q
What type of rock is soft water created over?
A
Igneous
