identify each item as either an element or a compound. carbon (c) carbon dioxide (co₂) hydrogen (h) sodium…

identify each item as either an element or a compound. carbon (c) carbon dioxide (co₂) hydrogen (h) sodium chloride (nacl) done

identify each item as either an element or a compound. carbon (c) carbon dioxide (co₂) hydrogen (h) sodium chloride (nacl) done

Answer

Brief Explanations:

An element is a pure substance made of only one type of atom. A compound is made of two or more different - types of atoms chemically combined. Carbon (C) and hydrogen (H) are made of only one type of atom, so they are elements. Carbon dioxide ($CO_2$) is made of carbon and oxygen atoms, and sodium chloride ($NaCl$) is made of sodium and chlorine atoms, so they are compounds.

Answer:

carbon (C): Element carbon dioxide ($CO_2$): Compound hydrogen (H): Element sodium chloride ($NaCl$): Compound