Over one-third of the compounds were terpenoids, chemicals that plants use to ward off threats like insects and pathogens.

Common solvents include water, ethanol and white spirit. A compound contains atoms of different elements, chemically joined together. Compounds form in chemical reactions, and you need other ...

The chemical formula of a covalent molecular substance gives the number of atoms per molecule. The formula of a covalent network or ionic compound gives the simplest ratio of atoms/ions in the ...