Chemical weathering is a gradual and ongoing process as the mineralogy of the rock adjusts to the near-surface environment. Secondary minerals develop from the original primary minerals of the rock. In this the processes oxidation and hydrolysis are the most frequent chemical processes that take place. Chemical weathering indeed takes place in the hot and moist climates as rocks absorb the moisture and gradually loses its minerals as they get dissolved and turns to clay and the process by which rocks are eroded by the external forces of the environment is called chemical weathering.