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Water hardness. Causes of water pollution
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How to remove permanent hardness
effect of soda Na2CO3 MgSO4+Na2CO3->MgCO3+Na2SO4
What salts are included in permanent hardness?
CaSO4,CaCl,MgCl2,MgSO4
Why does limescale build up in household appliances?
to hard water
equation when reacting with milk of lime
Ca(HCO3)+Ca(OH)2->2CaCO3+2H2O
Hard water harms the body
causes kidney, gallstone accumulation, cardiovascular diseases, damage to hair and facial skin
What is water hardness?
Changes in water properties under the influence of Ca and Mg ions contained in water
Effect of soda on hard water? (formula)
MgSO4+Na2CO3=MgCO3+Na2SO4
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