Download Chemistry Unit 1 Review: Test Preparation and more Lecture notes Chemistry in PDF only on Docsity! ย 1 Chemistry Name _________________________ Unit 1 Review Date __________________________ Unit 1 test will cover material on pages 3-22 of your ISN. The test will have the following types of questions: โข Matching โข Multiple Choice โข Open-Ended Questions โข Lab type questions โข Calculations Remember to bring your calculator. Also, remember to bring your ISN. All ISNs will be collected and graded. 1. Define matter. Anything that takes up space (volume) and has mass. 2. For each of the following words, place them in the correct column of the table below. air magnetic field car feeling heat human body light radio Thought flashlight textbook Matter Not Matter Air Magnetic field Car Feeling Human body Heat Radio Light Flashlight Thought textbook 3. What are the steps of the scientific method? State the problem. Perform Research Make a hypothesis Perform experiment Collect Data Analyze Data Conclusion ย 2 Match the items in column A with column B. Column A Column B 4. Refers to physical characteristics such as color, odor, or shape (B) a. observation 5. Refers to mass, volume, and temperature measurements (C) b. qualitative data 6. A variable controlled by the experimenter (D) c. quantitative data 7. The act of gathering information (A) d. independent variable 8. Changes in value based on the value of the controlled variable (E) e. dependent variable 9. What are three important safety rules? Choose any rule from the safety contract on page 4 of your ISN. 10. What is the difference between a physical and a chemical property? A physical property can be observed without changing the substance (ex. color, mass, volume, any phase change) and a chemical property can only be observed by changing the substance (ex. reactivity with water, flammability). For 11-15, determine if it is a substance or a mixture, and then determine if it is an element, compound, heterogeneous, or homogeneous. 11. Zinc โ substance, element 12. Sand and water โ mixture, heterogeneous 13. Milk โ mixture, homogeneous 14. Eggs โ mixture, heterogeneous 15. Aluminum Chloride - substance, compound 16. What are the four indications that a chemical reaction has occurred? Color change, energy is released or taken in by the substances, precipitate is formed, gas is released and the gas is a new substance. 17. The density of aluminum is 2.70 g/mL. If the mass of a piece of aluminum is 244 grams, what is the volume of the aluminum? ๐ซ = ย ๐ด ๐ฝ ,๐๐๐๐๐๐๐๐ ย ๐๐๐๐ ย ๐๐๐
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