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AP® Chemistry

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Moderate

Conservation of Atoms 3

APCHEM-PGNYJE

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Blue represents molecules of diatomic element $A_2$, and red represents molecules of diatomic element $B_2$.

The balanced equation for the reaction is:

$${ A }_{ 2 }+2{ B }_{ 2 }\rightarrow 2A{ B }_{ 2 }$$

Which of the following correctly depicts the system after the reaction has gone to completion?

A

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B

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C

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D

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