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A bracelet, originally made of pure silver, became tarnished over time with black silver sulfide (Ag2S) forming on the surface
(2012)
In 1909 Rutherford bombarded a very thin sheet of gold foil with alpha particles, most of which passed straight through it undeflected. Some alpha particles, however, were deflected at large angles and a very small number were reflected back along their o
Consider the following room temperature equilibrium reaction used to dissolve iodine (I2) crystals in an aqueous solution of iodide ions (I – )
Bauxite from Africa is transported to Aughinish in Co. Limerick, where it is converted to pure alumina (Al2O3). The alumina is then shipped to Russia where aluminium metal is produced from it by electrolysis.
Give one major commercial use for nitrogen gas.
