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OpenStudy (anonymous):
At constant pressure, which of these systems do work on the surroundings? Check all that apply. A(s) + 2B(g) = C(g) A(s) + B(s) = C(g) A(g) + B(g) = C(g) A(g) + B(g) = 3C(g) please help. i tried 7 times and cant guess. dont want to loose any more points.
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