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Determine the Number of Water Molecules Necessary to Balance the Following

Question 208

Multiple Choice

Determine the number of water molecules necessary to balance the following chemical equation. Cr2O72-(aq) + Cl-(aq) + H+(aq) → Cr3+(aq) + Cl2(g) + ________ H2O(l)


A) 3
B) 5
C) 7
D) 14

Correct Answer:

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