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18. The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of A. conservation of energy. B. conservation of matter. C. atomic disintegration. D. definite proportions.
Weegy: The answer is B. conservation of matter. :) User: 19. Organic chemistry is the study of compounds containing A. oxygen. B. carbon. C. nitrogen. D. hydrogen. Weegy: C. carbon. (More)
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Updated 12/4/2012 2:45:18 PM
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B. conservation of matter. Is the obvious choice.
Added 12/4/2012 2:45:18 PM
18. A failure of the red-sensitive nerves in the eye to respond to light properly causes A. color blindness. B. chromatic aberration. C. farsightedness. D. astigmatism.
Weegy: The answer is: B. color blindness. User: 19. When an object is placed 8 millimeters from a concave spherical mirror, a clear image can be projected on a screen 16 millimeters in front of the mirror. If the object has a height of 4 millimeters, the height of the image is A. 8 millimeters. B. 2 millimeters. C. 4 millimeters. Weegy: If the object has a height of 4 millimeters, the height of the image is 2 millimeters. (More)
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Asked 12/5/2012 11:01:05 AM
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7. The grid in a high-vacuum triode is usually kept negatively charged with respect to the cathode so that the electrons may be A. accelerated toward the anode. B. attracted to the cathode instead of the grid. C. attracted to the anode instead of the grid. D. accelerated toward the cathode.
Weegy: D. accelerated toward the anode. The anode is positively charged to attract the electrons coming from the cathode. The electrons, being negatively charged, will not be attracted to the grid. User: 8. To use your left hand to determine the direction of the voltage developed in a moving conductor in a stationary magnetic field, you must point your A. forefinger in the direction of the lines of force. B. forefinger in the direction of the ... (More)
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Asked 12/5/2012 11:35:00 AM
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25. A body that has relatively few free electrons and offers comparatively great resistance to the movement of free electrons is a/an A. coulomb. B. insulator. C. capacitor. D. conductor.
Weegy: The answer is B. Insulator (More)
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Asked 12/5/2012 12:43:37 PM
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3. Which one of the following events in "Bernice Bobs Her Hair" is an example of an epiphany? A. Marjorie dares Bernice to get her hair bobbed. B. Warren begins to come to visit Bernice. C. G. Reece Stoddard cuts in on Bernice's dance partner. D. Bernice suddenly understands how others see her.
Weegy: D. Bernice suddenly understands how others see her. User: 4. The events that take place in a story make up the story's A. climax. B. genre. C. setting. D. plot. Weegy: The events that take place in a story make up the story's plot. (More)
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Asked 12/6/2012 10:32:25 AM
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