The apparatus below is used to react calcium with water and collect the gas. This would not be used with sodium or potassium as they float and the reaction is too vigorous.

Calcium transforms silk hydrogels into a versatile platform that prints precisely, stores for months, and fuses after ...

Research suggests that without considering certain factors, researchers may overestimate how fast calcium carbonate forms in saline environments. The formation of calcium carbonate (CaCO 3) in water ...