2. The Chemist's classification of matter Classify the following substances as Pure substance (elements or compounds) or mixtures (homogenous mixture or heterogenous mixtures). a. Salad dressing_( Heterogenous ) b. Tap Water c. Table salt compound ) d. Milk e. Vinegar (homogenous ) f. Sugar (compound ) g. Vegetable oil h. Pizza (mixtures ) i. Baking Soda compound ) j. Air ( mixtures ) k. Rusty iron 1. Cappuccino (with foam)

5. Indicate whether the following statements best describes a solid, liquid, or gas a. It has an indefinite shape but a definite volume. b. It takes the shape and volume of the container. c. The particles are packed closely together and have very little movement. d. The particles are far apart and move very rapidly. 6. Consider the following classifications of matter: heterogeneous mixture, homogeneous mixture, element, and compound. a. In which of these classifications must two or more substances be present? (There is more than one answer.) b. In which of these classifications is separation into simpler substances using physical means possible? (There is more than one answer.)

1.Can the states of matter change from one form to another (ex solid to liquid)? Yes or No? How? 2.What do you call the change in the state of matter? 3.What are the processes involved in phase change?

3. Which of the following states of matter has a fixed volume and a fixed shape? a. Liquid b. Solid C. Gas d. Solution e. Heterogeneous mixture O a b O c d. e