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Chemistry, 21.06.2019 23:00
The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .
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Particles vibrate in a rigid structure and do not move relative to their neighbors.
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Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Chemistry, 22.06.2019 19:40
What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves
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