Chemistry, 21.01.2021 19:50 vadrian4739
What is the empirical formula of a compound that contains 30.4% nitrogen and 69.6% oxygen by mass?
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Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
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A250 g sample of water with an initial temperatureof 98.8 closes 6500 joules of heat. what is the finaltemperature of the water?
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Aresearcher wants to experiment with an element that reacts like phosphorus (p) but has a greater atomic mass. which element should the researcher select for the experiment?
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Acyclists rides at an average speed of 27 miles per hour. if she wants to ride at 181km, how long (in hours) must she ride?
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What is the empirical formula of a compound that contains 30.4% nitrogen and 69.6% oxygen by mass?...
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