Select the correct answer.
How many grams of Al2O3 are required to react completely with 1500.0 kJ of heat?
2Al2O3(s) + 3352 kJ -4Al(s) + 302(8)
A. 91.29 grams
B. 2 grams
C. 45.64 grams
D. 1500 grams
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An aqueous solution of calcium hydroxide is standardized by titration with a 0.120 m solution of hydrobromic acid. if 16.5 ml of base are required to neutralize 27.5 ml of the acid, what is the molarity of the calcium hydroxide solution?

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