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Atrain travels 65 km in three hours and then 52 km in two hours. what is its average speed?
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Compare and contrast physical changes with chemical changes.
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Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u. s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?
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Atrain travels 65 km in three hours and then 52 km in two hours. what is its average speed?...
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