Chemistry, 08.10.2021 04:50 ashvinmsingh
Which best describes the results of Becquerel’s experiments?
When placed in sunlight, the uranium did not form an image and when placed in darkness, the uranium did form an image.
When placed in sunlight, the uranium did form an image and when placed in darkness, the uranium did not form an image.
Both formed images when placed in their respective places.
Neither formed images when placed in their respective places.
Answers: 1
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In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?
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Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?
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Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?
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Which best describes the results of Becquerel’s experiments?
When placed in sunlight, the uranium...
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