contestada

Which one of the following is a balanced equation?

A. Na (s) + MgF2 → 2NaF (s) + Mg (s)
B. 2Na (s) + MgF2 → 2NaF (s) + Mg (s)
C. Na (s) + O2 (g) → Na2O
D. Zn (s) + HCl (g) → ZnCl2 (s) + H2 (g)

Respuesta :

transitionstate
Among these Options the Option B contains a Balance chemical equation. Equation is as follow,

                             2Na ₍s₎  +  MgF₂   →   2NaF ₍s₎  +  Mg ₍s₎

There are two Na atoms (or moles) at right hand side and two at left hand side.
There are two F atoms (or moles) at right hand side and two at left hand side.
There is one Mg atom (or mole) at right hand side and one at left hand side.

Otras preguntas