Multiple Choice
Based on your understanding of activities determine if a reaction occurs and if so provide the products formed.
Zn (s) + NiCl2 (aq) →
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Ba (s) + 4 H2O (g) → Ba(OH)2 (aq) + 2 H2 (g)
Ba (s) + H2O (g) → Ba(OH)2 (aq) + H2 (g)
Ba (s) + 2 H2O (g) → Ba(OH)2 (aq) + H2 (g)
No reaction
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