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Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
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What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.
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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 nitrogen atoms are in 4.26 moles of ammonium...
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