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How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
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The atomic number, or number, is the described as the number of in the nucleus of an chemical element.
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While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars
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How many moles of ZnS are needed to react with 9 mol of O2...
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