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Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.
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Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
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C. How many grams of NH3 react completely with 75.0 grams of PbO?...
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