Noun. 1. addition reaction-a chemical reaction in which one molecule is added to another. chemical reaction, reaction - (chemistry) a process in which one or more substances are changed into others; there was a chemical reaction of the lime with the ground water. 1  Facebook. 2  Twitter.
Kettlestone is a village and civil parish in the English county of Norfolk. It covers an area of 7.55 km2 (2.92 sq mi) and had a population of 177 in 85 households at the 2001 census, increasing to 197 at the 2011 Census. For the purposes of local government, it falls within the district of North Norfolk.
Black stone. A black stone of unknown origin has been used in the construction of several structures throughout the known world. Some of it is described as oily or greasy, in contrast to the similar but drier constructions of Valyrian dragonstone. Contents. 1 Oily black stone 1.1 Seastone Chair.