Question

ScF2 +
KBr ---->
KE +
ScBr2

Answer 1

Balanced equation :

ScF₂ + 2KBr ⇒ 2KF + ScBr₂

Further explanation

Given

Reaction

ScF₂ + KBr ⇒ KF + ScBr₂

Required

Balanced equation

Solution

1. Give coefficient

ScF₂ + aKBr ⇒ bKF + cScBr₂

Sc, left=1, right=c⇒c=1

F, left=2, right=b⇒b=2

K, left=a, right=b⇒a=b⇒a=2

The equation becomes :

ScF₂ + 2KBr ⇒ 2KF + ScBr₂