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Chemistry, 20.06.2019 18:04, hsjsjsjdjjd
In which of the following belong to a category called the main group of elements? nonmetals. transition elements. halogens. alkali metals. it can be more than one answer!
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Chemistry, 22.06.2019 04:30, falishaduncanovmtz2
Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery
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Describe the experimental basis for believing that the nucleus occupied a very small fraction of the...
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