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If the molar volume of a gas at STP is 22.4 litres, how many moles are there in 112 litres of hydrogen gas?
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What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5
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Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt
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Give one example of a pure (exact) number and of an estimated (measured) number.
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If the molar volume of a gas at STP is 22.4 litres, how
many moles are there in 112 litres of hydro...
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