Question

_Li + __F2 → _LIF
How do I balance this?

Answer 1

2Li + F₂ → 2LiF

Step-by-step explanation:

The reaction expression is given as:

Li + F₂ → LiF

We are to balance the expression. In that case, the number of atoms on both sides of the expression must be the same.

Let use a mathematical approach to solve this problem;

Assign variables a,b and c as the coefficients that will balance the expression:

aLi + bF₂ → cLiF

Conserving Li: a = c

F: 2b = c

let a = 1, c = 1 and b =
`(1)/(2)`

Multiply through by 2;

a = 2, b = 1 and c = 2

2Li + F₂ → 2LiF