In this reaction setup, lime water is poured into one of the test tubes and sealed with a stopper. A small amount of hydrochloric acid is carefully poured into the remaining test tube. ... As a result of the acid-carbonate reaction, carbon dioxide is produced and the lime water turns milky.
All rocks are constantly moving, but at a pace we cant see. Rocks might change from weather corrosion, or magma moving deep down. They are stable but sometimes can be unstable (earthquakes).
