Nitro, Nitroso, Nitrate, and Nitrite Compounds, Organic. Reactive groups are categories of chemicals that typically react in similar ways because they are similar in their chemical structure. Each substance with a chemical datasheet has been assigned to one or more reactive groups, and CAMEO Chemicals uses the reactive group assignments to make its reactivity predictions.
The largest  number that has a commonly-known specific name is a googolplex,  which is a 1 followed by a googol zeros, where googol is 10100 (a 1  followed by 100 zeros).
Report Abuse. In American usage, a billion has 9 zeroes, a trillion has 12, and the next named number, quadrillion, has 15. But in British usage, a billion has 12 zeroes, a trillion has 18, and a quadrillion has 24. Source(s): http://en.wikipedia.org/wiki/Names_of_la... DavidK93 Â· 9 years ago.