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How many moles of He can be contained in a 1650 L container at STP?
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He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
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How many moles of potassium are needed to react completely with 12.8 moles of magnessium bromide?
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Where are the noble gases located in the periodic table? a. in the center b. on the left side c. in the upper right corner d. on the far right side
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How many moles of He can be contained in a 1650 L container at STP?...
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