Dimethylmercury ((CH3)2Hg) is an organomercury compound. This colorless liquid is one of the strongest known neurotoxins. It is described as having a slightly sweet smell, although inhaling enough vapor to detect its odor would be hazardous.
The formation of a star begins with gravitational instability within a molecular cloud, caused by regions of higher density-often triggered by shock-waves from nearby supernovae (massive stellar explosions), the collision of different molecular clouds, or the collision of galaxies (as in a starburst galaxy).
Describe the nebular hypothesis. 1. A diffuse, slowing rotating cloud begind to contract due to gravity 2. As a result of contraction and rotation, a flat, rapidly rotating disk forms with the matter concentrated at the venter that will become the proto-Sun. 3. The photo sun is so compressed and so hot that nuclear fusion begins. 4. Mass turns into energy and like an H-bomb, an explosion occurs. 5.