The balanced equation N2(g) + 2 O2(g) ? 2 NO2(g) means which of the following?
A) One mole of nitrogen reacts with two moles of oxygen to form two moles of nitrogen dioxide.
B) One gram of nitrogen reacts with two grams of oxygen to form two grams of nitrogen dioxide.
C) The equation means both a and b.
D) The equation means neither a nor b.
A
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