CHAPTER 1 ASSESSMENT Chapter 1 Test /25 Name: Date: Goal To test your knowledge of chemical safety symbols, the particle theory of matter, chemical and physical properties, and classification of matter. What to Do Read the instructions carefully before answering each set of questions. Multiple Choice Read each question and the list of possible answers. Circle the best answer (1 mark each). 1. What does this safety symbol mean? 3. Material Safety Data Sheets (MSDS) are required for every controlled substance. What information is not found on an MSDS? (a) flammable and combustible (a) manufacturer (b) compressed gas (b) first-aid treatment (c) poisonous and infectious (c) Hazardous Household Product Symbol (d) oxidizing (d) handling instructions 2. What does this safety symbol mean? 4. Which of the following statements best describes water in the solid state? (a) not infectious (b) poisonous and infectious (c) biohazardous and infectious (d) dangerously reactive (a) Particles of solid water sink in liquid water. (b) Particles are moving faster than in water vapour. (c) Particles are loosely packed. (d) Particles are densely packed. CHAPTER 1 ASSESSMENT Chapter 1 Chapter Test (continued) 5. Which description of particles is correct? (a) Particles in a solid move apart from each other to assume the shape of a container. (b) Particles in a gas move more slowly than those in a liquid. 8. Which of the following is a pure substance? (a) steel (b) pile of salt and pepper (c) gold (d) crunchy peanut butter (c) Particles in a solid just barely vibrate. (d) Particles in a liquid do not move. 9. A science student is about to mix two unlabelled chemicals. Which piece of advice would you offer to this student? 6. Which of the following statements does not belong in the particle theory of matter? (a) All matter consists of tiny particles. (b) The particles in mixtures can be easily separated. (c) All particles are in motion. (a) Use caution since chemicals will form a solid. (b) Do not mix these chemicals. They may react dangerously. (c) Nothing will happen. (d) Label the chemicals after mixing. (d) There are spaces between particles. 10. Which of the following statements is false? 7. What physical property can be used to distinguish between a 1 cm cube of copper and a 1 cm cube of sugar? (a) lustre (b) size (c) cost (d) state (a) Adding salt to water will make the boiling temperature increase. (b) Melting point is a physical property. (c) Density is a chemical property. (d) Water exists in three states of matter. CHAPTER 1 ASSESSMENT Chapter 1 Chapter Test (continued) Short Answer Unless asked to do otherwise, answer the following questions in complete sentences. 11. A product’s safety label shows that it is flammable and combustible. What two things should you consider when choosing a storage site for this substance? (2 marks) 13. If someone with a visual impairment needed to identify a substance, what three properties would help them recognize it? (2 marks) 12. WHMIS labels are found in science labs. 14. Describe the three states of matter and provide an example of each. For each state, describe how the particles behave. (3 marks). (a) Name two other places WHMIS labels are found (1 mark). (b) Explain two reasons WHMIS training is important in a wide variety of jobs (2 marks). CHAPTER 1 ASSESSMENT Chapter 1 Chapter Test (continued) Long Answer In the space provided or on a separate piece of paper, answer the following questions. Use complete sentences in your written work. 15. Material Safety Data Sheets (MSDS) are developed for every controlled substance. Describe three kinds of information that can be found on an MSDS (3 marks). 16. Many substances are mixtures rather than pure substances. Identify two substances that may be incorrectly labelled as being pure substances. Explain why these substances are actually mixtures. (2 marks)