How many liters of hydrogen gas are produced from the complete reaction of 146.5 g magnesium metal at 2.40 atm and a temperature of 314 K? Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) Note: Keep extra digits in any intermediate calculations! Round to the correct number of significant figures at the very end. For R, use 0.08206 L atm/(mol K).

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

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The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z