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Displacement and double displacement reactions

Problem

Pirate captain Jack Sparrow maintains a chemistry laboratory aboard his ship to keep his weapons game strong.
One day he accidentally drops his stock of sodium (Na) in the water and observes a violent reaction.
Na(s)+H2O(l)boom!?
Which of the following reactions does Captain Sparrow observe?
Note: Na is more reactive than H.
Choose 1 answer: