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more practice - Devillez (ld2653) Test 1 Review Devillez...

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Devillez (ld2653) – Test 1 Review – Devillez – (99998) 1 This print-out should have 133 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points A chemist investigates the I) melting point II) boiling point III) ±ammability oF acetone, a component oF fngernail polish remover. Which is/are physical? 1. III only 2. I, II and III 3. II and III only 4. I and II only 5. I only 6. I and III only 7. II only 8. None oF these 002 10.0 points Consider the statement: “The temperature oF the land is an impor- tant Factor For the ripening oF oranges, be- cause it a²ects the evaporation oF water and the humidity oF the surrounding air.” How many oF these Factors, temperature ripening evaporation humidity are physical properties or changes? 1. 2 2. None 3. 4 4. 3 5. 1 003 10.0 points All oF the Following are characteristic proper- ties oF phosphorus. Which one is a chemical property? 1. The white Form is soluble in liquid carbon disulfde, but is insoluble in water. 2. The red Form melts at about 600 C and the white Form melts at 44 C. 3. Both red phosphorus and white phospho- rus exist in solid allotropic Forms. 4. When exposed to air, white phosphorus will burn spontaneously, but red phosphorus will not. 5. The red Form oF phosphorus is insoluble in both water and carbon disulfde. 004 10.0 points Which oF the Following is an extensive physical property? 1. reactivity 2. color 3. density 4. mass 5. reFractive index 005 10.0 points Which oF the Following is an intensive prop- erty? 1. number oF moles oF molecules 2. volume 3. weight 4. mass 5. density
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Devillez (ld2653) – Test 1 Review – Devillez – (99998) 2 006 10.0 points Which is NOT a pure substance? 1. water 2. chlorine 3. copper 4. brass 007 10.0 points Which diagram(s) I II III IV best characterize(s) a mixture? 1. I, II and III only 2. I and III only 3. III and IV only 4. IV only 008 10.0 points Which diagram(s) best characterize(s) an element? I II III IV best characterize(s) an element? 1. III and IV only 2. II only 3. I only 4. I and II only 009 10.0 points Which diagram(s) best characterize(s) a compound? I II III IV 1. II and III only 2. II only
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Devillez (ld2653) – Test 1 Review – Devillez – (99998) 3 3. I and IV only 4. I only 010 10.0 points Which diagram(s) I II III IV best represent(s) molecules? 1. II and IV only 2. I only 3. I and II only 4. I and III only 5. III only 6. II and III only 7. Another combination 8. II only 9. IV only 011 10.0 points Which diagram(s) I II III IV best represent(s) atoms? 1. I and III only 2. I and II only 3. I only 4. II only 5. IV only 6. III only 7. Another combination 8. II and IV only 9. II and III only 012 10.0 points Which of the following statements concerning substances is NOT true? 1.
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more practice - Devillez (ld2653) Test 1 Review Devillez...

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