For example, copper and gold are elements ... chemically joined together. Compounds form in chemical reactions, and you need other chemical reactions to separate a compound into its elements.

Most organic compounds contain carbon and hydrogen ... Take the cosmetics industry as an example. Organic chemistry examines how the skin responds to metabolic and environmental factors, and chemists ...

inorganic chemistry is the study of the remaining (i.e., not carbon-containing) subset of compounds. But there can be overlap between the two fields. For example, organometallic compounds usually ...

However, we now know that there are actually 118 chemical elements ... very difficult to separate them. Compounds are not found on the periodic table. For example, water isn’t on the periodic ...