C3 - Water hardness and solutes

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  • Created by: kat-y
  • Created on: 06-11-16 11:50
Minerals that contain......and....... make water hard
Calcium and Magnesium
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True or false? It is easier to make lather with soap in hard water.
False
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Why was the previous statement false?
Because the calcium ions and the magnesium ions in the water combine to make an insoluble precipitate.
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The insoluble precipitates form.......
Scum
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The harder the water, the more......is needed to make.....
Soap, soap bubbles
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This means that.....
Some soap is wasted in area with hard water and the scum has to be removed in water treatment works
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What might some hard water produce when heated?
Limescale
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When the process of heating softens the hard water, the water had......
Temporary hardness
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Why is the temporary hard water able to be softened when heated?
The dissolved calcium and magnesium compounds decompose when heated.
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What is removing the hardness of water called?
" softening hard water "
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How can permanent hard water be removed by the.....
Ion exchange column, which will also work on temporary hard water.
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Other cards in this set

Card 2

Front

True or false? It is easier to make lather with soap in hard water.

Back

False

Card 3

Front

Why was the previous statement false?

Back

Preview of the front of card 3

Card 4

Front

The insoluble precipitates form.......

Back

Preview of the front of card 4

Card 5

Front

The harder the water, the more......is needed to make.....

Back

Preview of the front of card 5
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