molecule

"Important types of property include real property (land), personal property (other physical possessions), and intellectual property (rights over artistic creations, inventions, etc.)."

"The chlorine in the swimming pool keeps it clean. "

"The prisoners were kept in a secure compound. "

"A small group."

"Hydrogen is the simplest chemical element, with only one proton in its atom. "

"The project consists of three main parts. "

"The scientist studied the tiny particle of dust. "

"The specific of her success was her dedication to studying. "

"The teacher's lesson plan was together, covering all the key concepts logically. "

"Oxygen is a diatomic molecule, meaning it's always found in pairs of atoms. "

"The doctor recommended that Maria increase her intake of potassium chloride to help balance her electrolytes. "

"The scientist studied the chemical composition of the soil sample. "