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Chemistry, 22.06.2019 03:00, parisaidan366
What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?
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Chemistry, 23.06.2019 01:20, cedricevans41p4j3kx
Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 × 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)
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Chemistry, 23.06.2019 04:00, Mitchmorgan3816
Why must humans find substitutes for many minerals found on earth? (a) form at an extremely slow rate (b) controlled by other countries (c) too deep in the earth to collect
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Predict the electronegativity of the yet undiscovered element with z = 119....
English, 05.12.2019 22:31