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Classifying matter
1. Smoke is an example of a(n):
heterogeneous mixturehomogeneous mixture gaseous solution compound element
2. A solid melts gradually between 85°C and 95°C to give a milky, oily liquid. When a laser beam shines through the liquid, the path of the beam is clearly visible. The milky liquid is likely to be:
a heterogenous mixturea compounda solutionan element
3. Antoine Lavoisier, the "father of chemistry", listed lime as a chemical element in his table of 33 known elements. Which of the following observations shows that lime cannot be an element?
Lime melts at a temperature of 2572°C.
Lime and carbon dioxide are produced when limestone is roasted.
Lime reacts with water, generating a large amount of heat.
When a certain soft metal is burned in oxygen, lime is produced (with no other products).
4. The meteorite ALH84001 contains tiny bubbles of gas trapped in the rock. The chemical composition of the gas in these bubbles matches the composition of the Martian atmosphere as determined by Viking spacecraft in the 1970's. The meteorite is an example of a(n)
homogeneous mixturebinary compoundheterogeneous mixturesolutionelement
5. Vanillin contains 63.15% C, 5.30% H, and 31.55% O whether it is extracted from vanilla beans, synthesized chemically from clove oils, or extracted from wood pulp wastes. Vanillin is most likely to be:
a solution of C in H and Oa heterogeous mixture of elements
a compound of C, H, and Oa homogenous mixture of elements
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General Chemistry Online! Classifying matter

Copyright © 1997-2005 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 07/25/05.URL: http://antoine.frostburg.edu/chem/senese/101/matter/classify-matter-quiz.shtml