A compound (for example: H2O)
This excerpt outlines the important precedent set by the court case Plessy vs. Ferguson. Plessy vs. Ferguson establishes the idea that "separate but equal" facilities are constitutional (aka legal). Essentially, this Supreme Court ruling allows for private and public places to be segregated. The ruling of Plessy vs. Ferguson resulted in segregated facilities all over the country including schools, restauraunts, bus stops, bathrooms, water fountains, etc.
This case is not overturned until 1954, in which the case Brown vs. Board reverses this idea and declares that separate but equal facilities violates the 14th amednment rights of African-American citizens.
Carbon forms bonds with not only common non-metal elements such as hydrogen, oxygen, nitrogen, sulfur, phosphorus, and halogens, but also with most metallic elements. Many of the compounds based on carbon-heteroatom bond are common reagents found in the shelves of chemistry laboratories.
In a statistical analysis, a frame is referred to a list of individuals present in a population. The frame is a list, which is taken pre analysis of any data for that particular population.
Everyday, many individuals get added and removed from the population one is studying. So, one can say that the frame is very dynamic. Hence, it becomes difficult to count a perfect number of individuals present in a particular population. This is the reason, why the frames are rarely accurate.