placement of superscript

[labgirl]

What is the difference between the the placement of the superscript? Example, in EK Physics Exam 4, Passage II, in reaction 4, the products are written with a superscript of 1 infront of an H and a superscript of 1 behind an H. The answer to question 79 says that there is no hydrogen product in the overall reaction so do these cancel each other out somehow? (Sorry I can't post the exact reactions, but I don't know how to show superscripts in my post)

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