Question

Na+H2O --> NaOH+H2
does that mean that:
H=2 and H=3
or does H=2 on both sides?

Answer 1

Answer:

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Answer 2

It means that before reaction their were 2 atoms of hydrogen

whereas after reaction their are 3 atoms

1 from NaOH and 2 from H2

I hope it helps you......!!