an anatomic structure with branches resembling a tree. bronchial tree the bronchi and their branching structures; see color plates. tracheobronchial tree the trachea, bronchi, and their branching structures; see color plates.. an anatomical structure with branches resembling a tree. 2. in information science, a decision tree. bronchial tree. the trachea, bronchi and successive branching generations of the respiratory passages.
If we make the balanced equation between al giving al2o3, The number of aluminum atoms is two and the number of oxygen atoms is three. As we know the atomic masses of aluminum as 26.9815386 grams per mole and oxygen as 16.9994 grams per mole. Multiplying the number of atoms of each of these elements by its respective atomic weight and then adding them, the molecular weight of Al2O3 is 101.961276 grams per mole.
Buildings made with aluminum are virtually maintenance free due to the strength of aluminum's corrosion resistance. Due to this and its light weight it is used in cladding, windows, skylights, gutters, door frames, and roofing.eight is also important in aluminum's electrical uses, where it's low density 2 makes it the first choice for long distance powerlines despite having just 63% of the electrical conductivity of (much denser) copper. In fact 1 kg of aluminum conducts almost twice as much electricity as 1 Kg of copper.