For the reaction 2KClO3  2KCl + 3O2 , how many moles of KClO3 are required to produce 125 g O2 ?

Which position represents spring in the southern hemisphere? a) b) c) d)

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Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).