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A2.00−l sample of water contains 150.0 μg of lead. calculate the concentration of lead in ppm.
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How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)
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Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?
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Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.
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Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg
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A2.00−l sample of water contains 150.0 μg of lead. calculate the concentration of lead in ppm....
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