How do you cite the source

A citation identifies for the reader the original source for an idea, information, or image that is referred to in a work.

In the body of a paper, the in-text citation acknowledges the source of information used.

At the end of a paper, the citations are compiled on a References or Works Cited list.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.