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Joseph Priestley's Discovery of Oxygen Involved the Unbalanced Chemical Reaction

Question 5

Multiple Choice

Joseph Priestley's discovery of oxygen involved the unbalanced chemical reaction provided here. What mass of oxygen would be produced from the decomposition of 12.3 g of HgO?
HgO Hg + O2


A) 1.82 g
B) 0.909 g
C) 3.63 g
D) 0.455 g
E) 0.981 g

Correct Answer:

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