Rachel is a 35 year old school teacher who has no man in her life and lives with her mother. When a man from the big city returns and asks her out, she begins to have to make decisions ... See full summary Â».
As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals. Cesium and francium are the most reactive elements in this group. Alkali metals can explode if they are exposed to water.
Thermite is a pyrotechnic composition of metal powder fuel and metal oxide. When ignited by heat, thermite undergoes an exothermic reduction-oxidation (redox) reaction.Most varieties are not explosive but can create brief bursts of high temperature in a small area.he reaction is used for thermite welding, often used to join rail tracks. Thermites have also been used in metal refining, demolition of munitions, and in incendiary weapons. Some thermite-like mixtures are used as pyrotechnic initiators in fireworks.