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What is the percentage of hydrogen in nitrogen trihydride
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Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)
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Amatch has about 21 milligrams of red phosphorus coating the tip. how many atoms of phosphorus is this?
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