Learning Objectives for Introductory Chemistry, 2nd Edition, by Nivaldo Tro Chapter 3: Matter and Energy Vocabulary: Students should be able to define and use the following vocabulary words correctly. atoms heterogeneous mixture molecules Celsius scale homogeneous mixture physical changes chemical changes Kelvin scale physical properties chemical properties kinetic energy potential energy compound law of conservation of energy potential energy element law of conservation of mass pure substance energy liquid solid Fahrenheit scale (ºF) matter state of matter gas mixture A student should be able to: 1. Define matter and discuss and differentiate between the two types of particles that make up matter: atoms and molecules. 2. Define the 3 states of matter in terms of shape and volume; also in terms of closeness of particles and their movement. 3. Differentiate between a pure substance and a mixture - on the particle level. 4. Classify substances as pure substances or mixtures; see examples in notes and in powerpoint slides. 5. Give examples of 2 types of pure substances and differentiate between them. 6. Give examples of 2 types of pure mixtures and differentiate between them. 7. Give names for the elements listed on slide 19, when given their chemical symbols and vice versa. 8. Identify whether a pure substance is an element or a compound by looking at its formula. 9. Identify whether a formula represents an atom or a molecule. 10. Differentiate between an element and a compound by looking at a formula (or picture). 11. Explain the Law of Conservation of Mass. 12. Explain why the Kelvin temperature scale is called an absolute scale. 13. Explain the basis for the Celsius and Fahrenheit temperature scales.