Water

SOFT WATER;

• Soft water is the 'normal' water. It dissolves most ionic compounds, including: chlorides, sulphates, nitrates (with some exceptions) ammonium, potassium and sodium.
• Water is classed as the 'universal solvent'.
• Water molecules are polar - they have a positive hydrogen side and a negative oxygen side.

HARD WATER;

• Caused by magnesium chloride, magnesium sulphate, calcium chloride and calcium sulphate.
• Passes over rocks, such as limestone or chalk, and the above minerals dissolve into the water.
• Also, when CO2 is in the air, it sometimes dissolves in the rain water
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