Chemistry 9thedition Study guides, Class notes & Summaries

Chapter 2: Atoms, Molecules, and Ions 1. The first people to attempt to explain why chemical changes occur were A) alchemists B) metallurgists C) physicians D) physicists E) the Greeks ANS: E PTS: 1 DIF: Easy REF: 2.1 KEY: Chemistry | general chemistry | early atomic theory MSC: Conceptual 2. The Greeks proposed that matter consisted of four fundamental substances: A) fire, earth, water, air B) fire, metal, water, air C) earth, metal, water, air D) atoms, fire, water, air E) atoms,...