Hard/ soft water revision

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How can temporary hard water be removed?
By boiling
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How can permanent hard water be removed?
Calgon (replacing the calcium/magnesium ions with sodium ions (these dissolve better) OR through Ion exchange where the hard water is passed through a column and the calcium/magnesium ions stick to a resin on the side of the column.
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What type of water lathers easily?
Soft water
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What does hard water produce when reacted with soap?
Scum
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What are the ions responsible for hard water?
Ca2+ and Mg2+
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Name 1 pro of hard water
It contains calcium which is good for your bones
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Name 1 con of hard water
Forms scum, deposits limescale on appliances, needs more soap at a greater cost
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name 1 pro of soft water
Forms lather easily
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name 1 con of soft water
Doesn't have any health benefits
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Other cards in this set

Card 2

Front

How can permanent hard water be removed?

Back

Calgon (replacing the calcium/magnesium ions with sodium ions (these dissolve better) OR through Ion exchange where the hard water is passed through a column and the calcium/magnesium ions stick to a resin on the side of the column.

Card 3

Front

What type of water lathers easily?

Back

Preview of the front of card 3

Card 4

Front

What does hard water produce when reacted with soap?

Back

Preview of the front of card 4

Card 5

Front

What are the ions responsible for hard water?

Back

Preview of the front of card 5
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