(b) Na(s) + H²O(1) NaOH (aq) + H²(g)​

Answer :

[tex]\boxed{\sf {Na\atop Sodium}+{H_2O\atop water}\longrightarrow {NaOH\atop Sodium\:Hydroxide}+{H_2\atop Hydrogen}}[/tex]

Balanced equation:-

[tex]\boxed{\sf {2Na\atop Sodium}+{H_2O\atop water}\longrightarrow {2NaOH\atop Sodium\:Hydroxide}+{H_2\atop Hydrogen}}[/tex]