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Matter Test Review Vocabulary Precision Be able to define and apply the definitions of the following words: Problems Pure Substance Be able to solve problems similar in nature to the ones below. Mixture Convert 15.5 km to cm. 2. Convert 0.98 mg to cg. Convert 34 mi to km (1 mi = 1.61 km) Element Compound Homogeneous Mixture 1. 3. 4. Heterogeneous Mixture Intensive Property Extensive Property 5. Physical Property How many significant figures are in the following numbers: a. 1000 b. 1000. c. 0.0980 d. 150.98 e. 4.50 x 104 A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density? Chemical Property 6. A rectangular block of copper metal has a mass of 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper? 7. Find the mass of 250.0 mL of benzene. The density of benzene is 0.8786 g/mL. What volume (in dL) of silver metal will have a mass of exactly 2500.0 g? The density of silver is 10.5 g/cm3. What is the mass (in kg) of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL. Physical Change Chemical Change Density Solid 8. Liquid Gas 9. Plasma Accuracy