Advanced Placement (AP), 21.12.2019 07:31 kevinseven23
How many neutrons does an element have if its atomic number is 43 and its mass number is 150?
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Advanced Placement (AP), 22.06.2019 11:00
In her notes, celeste wrote that the human body systems consist of molecules, cells, tissues, organs, and organ systems. what problem will celeste have on her body systems test when she studies this information? she forgot to list organism as a level. she should have written chemicals/molecules. this is not the correct sequence. these are not body systems.
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A(n) provides the opportunity to hear the views of various experts, other public officials, supporters and even opponents of a bill. ordering
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Select the correct answer. what was edwin hubble's contribution to the field of astronomy? a. he discovered variable stars. b. he proved that the heliocentric model accurately described our solar system. c. he found a relationship between the period luminosity and distance of stars. d. he proved that the universe is finite. e. he discovered that the universe was expanding.
Answers: 1
How many neutrons does an element have if its atomic number is 43 and its mass number is 150?...
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