1. It is the simplest type of matter. 2. It is made up of two or more elements, . 3. It has a definite composition and unique set of properties. 4. It occupies space and has mass. 5. It is a compound made up of sodium and chlorine. 6. It is one of the components of water when broken down. 7. An example of element that is a metal. 8. Compounds can be classified as or base. 9. The smallest indivisible particle that makes up everything. 10. A compound that is formed when iron reacts with oxygen.
Answer (1)
1. Element — a pure substance made up of only one type of atom. 2. Compound — made up of two or more elements chemically combined. 3. Compound — has a definite composition and unique properties. 4. Matter — occupies space and has mass. 5. Sodium chloride — a compound made up of sodium and chlorine. 6. Hydrogen — one of the components of water when broken down. 7. Iron — an example of an element that is a metal. 8. Acid or base — classifications of compounds. 9. Atom — the smallest indivisible particle that makes up everything. 10. Iron oxide — a compound formed when iron reacts with oxygen.
