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№1 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img0.jpg)
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№6 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img5.jpg)
№7 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img6.jpg)
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№10 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img9.jpg)
№11 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img10.jpg)
№12 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img11.jpg)
№13 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img12.jpg)
№14 слайд![Capillary Action Capillary](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img13.jpg)
Содержание слайда: Capillary Action:
Capillary Action:
Capillary action is important for moving water (and all of the things that are dissolved in it) around. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension.
№15 слайд![Density Density Water has a](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img14.jpg)
Содержание слайда: Density:
Density:
Water has a density of 1g/mL at 4 °C
Water is the one of the few substances that is less dense as a solid than liquid
Due to hydrogen bonding and resultant pockets
№16 слайд![Properties of Water At sea](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img15.jpg)
Содержание слайда: Properties of Water
At sea level, pure water boils at 100 °C and freezes at 0 °C.
The boiling temperature of water decreases at higher elevations (lower atmospheric pressure).
For this reason, an egg will take longer to boil at higher altitudes
№17 слайд![Water is Universal Solvent](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img16.jpg)
Содержание слайда: Water is Universal Solvent:
Ions and polar molecules readily dissolve in water
Substances such as salt are pulled apart by attraction of opposite charges due to polar structures
№18 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img17.jpg)
№19 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img18.jpg)
№20 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img19.jpg)
№21 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img20.jpg)
№22 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img21.jpg)
№23 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img22.jpg)
№24 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img23.jpg)
№25 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img24.jpg)
№26 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img25.jpg)
№27 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img26.jpg)
№28 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img27.jpg)
№29 слайд![Removal of Hardness Boiling](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img28.jpg)
Содержание слайда: Removal of Hardness
Boiling
Addition of lime
Addition of sodium carbonates
Base exchange process
Addition of Sodium carbonate
Base exchange process:
Sodium Permutit is used ( Na2Al2 Si2O H2O )
Exchange Na ions for Ca and Mg ions
Ca and Mg Permutit is formed .
Removes 100% hardness
Some raw water is added to protect against corrosive action of 100% soft water
№30 слайд![Measurement of Hardness](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img29.jpg)
Содержание слайда: Measurement of Hardness
Expressed as millimole equivalents of Ca2+ and Mg2+ cations in 1 liter of the water (mmole-Eq/L).
On scale hardness distinguishes:
№31 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img30.jpg)
№32 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img31.jpg)
№33 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img32.jpg)
№34 слайд![Eriochrome Black Indicator](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img33.jpg)
Содержание слайда: Eriochrome Black Indicator reacted with metal ions in water and changed its color:
Eriochrome Black Indicator reacted with metal ions in water and changed its color:
№35 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img34.jpg)
№36 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img35.jpg)
№37 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img36.jpg)
№38 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img37.jpg)
№39 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img38.jpg)
№40 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img39.jpg)
№41 слайд![КИПЯЧЕНИЕ ВОДЫ](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img40.jpg)
Содержание слайда: КИПЯЧЕНИЕ ВОДЫ
№42 слайд![ВЫМОРАЖИВАНИЕ ВОДЫ](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img41.jpg)
Содержание слайда: ВЫМОРАЖИВАНИЕ ВОДЫ
№43 слайд![ФИЛЬТРАЦИЯ Общая жесткость](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img42.jpg)
Содержание слайда: ФИЛЬТРАЦИЯ
Общая жесткость понижается на 80%.
№44 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img43.jpg)
№45 слайд![Что такое бытовой фильтр?](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img44.jpg)
Содержание слайда: Что такое бытовой фильтр?
№46 слайд![УМЯГЧИТЕЛИ ВОДЫ](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img45.jpg)
Содержание слайда: УМЯГЧИТЕЛИ ВОДЫ
№47 слайд![](/documents_6/a7b5c51bef5da5b8db4ed23d1f0c5094/img46.jpg)