Is 2Na+2H2O=2NaOH+H2 a redox reaction?

how do I write the oxidation number of both oxidizing agent and reducing agent?

1 Answer
Jack Oneill
Jun 4, 2018

Yes, I hope.

Explanation:

#2Na + 2H_2O ->2NaOH + H_2#

Oxygen losing hydrogens so is being oxidised, The Na has gained oxygen so is reduced, you can also use oxidation numbers, elements have an oxidation state of 0

oxygen is almost always -2, and is in this case, H is almost always + 1 and is in this case,

Na:
Goes from 0 to +1

as -2 from oxygen + 1 from hydrogen, you need 1 more to make 0

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