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Contents of 5.1 How and why do rocks disintegrate to form sediment?

5.1 How and why do rocks disintegrate to form sediment?

• Chemical weathering - Dissolution
• occurs when soluble minerals dissolve, especially ionically bonded types

halite water

NaCl(s) + H2O

Na+(aq) + Cl-(aq) + H2O

sodium ion chloride ion water

Fig 5.4a