Imagine there is a bulla, a large blister or sack of gas, in the lungs of a person who is climbing mountains. For each altitude below, estimate the percentage of the expansion of the bulla and explain whether it might become life-threatening. At 1.5 km  At 2.5 km

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Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.