- How many grams of oxygen are needed to react with 26.0 g of Mg?

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How do I reorder my portfolios so they are in my preferred arrangement? Which combination of numbers in this group has the highest value?
4 + (-4) 4*|-2| -4 * |2| | -4 | * (-2) 4 + 2? A car proceeds for 14.4 mi at 54 mi/h, then 26.1 mi at 45 mi/h, and finally 46.3 mi at 38.7 mi/h. what is the car's average velocity? Heather Parkes frm Madera Ca. In the yr of 1987? What are eigenvalue, eigenvector, Perron eigenvalue and Perron eigenvector for matrix {{0,3},{2,0}}?