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Chemistry 21 Online
OpenStudy (anonymous):

Which one of the following chemical equations is balanced? A. NH3 + H2O → 2NH4OH B. 2Na + S → 2NaS C. 2NaCl + H2SO4 → HCL + NaSO4 D. KOH + H2SO4 → KHSO4 + H2O

OpenStudy (anonymous):

count atoms on the left and right

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