Matter and Measurement

Matter and Measurement - Unit 1 Matter and Measurement 50...

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Unit 1: Matter and Measurement – 50 point quiz (MC = 2 points each, SA = 1 point each) 1. A sample composed of only one type of atom is a. A compound b. An element c. A solution d. An isomer 2. Which can be decomposed by chemical means? a. Ammonia (NH 3 ) b. Phosphorus (P) c. Oxygen (O 2 ) d. Silicon (Si) 3. Bronze contains 90 to 95 percent copper and 5 to 10 percent tin. Because these percentages vary, bronze is classified as a. A compound b. An element c. A mixture d. A pure substance 4. Which particle diagram represents a mixture of element X and element Z, only? Key = atom of X = atom of Z a. b. c. d. 5. Which statement describes a chemical property of oxygen? a. Oxygen has a melting point of 55 K b. Oxygen can combine with a metal to produce a compound c. Oxygen gas is slightly soluble in water d. Oxygen gas can be compressed 6. Two samples at the same temperature a. Have the same average kinetic energy b. Have the same melting point c. Must be the same compound d. Must be the same element 7. Two substances, A and Z, are to be identified. Substance A can NOT be broken down by a chemical change. Substance Z can be broken down by a chemical change. What can be concluded about A and D? a. Both A and Z are elements b. Both A and Z are compounds c. A is an element and Z is a compound d. A is a compound and Z is an element 8. At room temp, a mixture of sand
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Matter and Measurement - Unit 1 Matter and Measurement 50...

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