Combining hydrogen and oxygen to make water. releases a lot of energy. consumes a lotof energy. releases just as much energy as it consumes. is an…

Combining hydrogen and oxygen to make water…

  releases a lot of energy. 

  consumes a lot of energy. 

  releases just as much energy as it consumes. 

  is an example of a catalytic reaction. 

  is an example of nucleation. 

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