Question 4 (1 point) Which substance cannot be separated by physical means or chemical means? a solution a mixture an element a compound

Elements are the fundamental building blocks of matter and cannot be broken down into simpler substances by either physical or chemical means. They are pure substances represented on the periodic table, like gold (Au) and oxygen (O), and have unique properties that distinguish them from other elements. Compounds, on the other hand, are made up of two or more elements that are chemically bonded together. While you can break down compounds into their constituent elements through chemical reactions, such as electrolysis, elements remain indivisible in the context of chemistry! So if you’re ever in a debate, just remember: elements are here to stay!