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the mass of a single chromium atom is 8.64 * 10^-23 grams. how many chromium atoms would there be in 39.8 milligrams of chromium?
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4nh3+5o2--> 4no+6h20what is the total number of moles of h2o produced when 12 mole of nh3 is completely consumed?
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How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same
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Which of the following units is not an official si unit
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the mass of a single chromium atom is 8.64 * 10^-23 grams. how many chromium atoms would there be in...
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