Question

→ Sodium + water → Sodium Hydroxide + Hydrogen gas

Answer 1

. Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is

Na(s) + 2H20(l) → 2NaOH(aq) + 2H2(g)

2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g)

2Na(s) + 2H20(l) → NaOH(aq) + 2H2(g)

2Na(s) + H20(l) - 2NaOH(aq) + 2H2(g)

The correct answer is 2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g)

Answer 2

Sodium = Na

water = H₂O

sodium hydroxide = NaOH

hydrogen = H₂

Now,

Na + H₂O → NaOH + H₂

Ig it's about balancing. So..

as we know no of atoms on the both sides must be equal to each other.

Here there's one atom of hydrogen more than the reactant side which unequals it.

So,

2Na + 2H₂O = 2NaOH + H₂

8 atoms = 8 atoms

So, the equation is balanced.