Question

How many copies of F2 are required to balance this chemical equation? N2 + __F2 = 2NF3 a) 3 b) 4 c) 5 d) 6

Answer 1

Answer: a) 3

On the right side of the equation you have 6F, so you need 3 copies of F2 to balance the equation.

Answer 2

a) 3

Step-by-step explanation:

The unbalanced combustion reaction is shown below as:-

`N_2+F_2\rightarrow 2NF_3`

On the left hand side,

There are 2 nitrogen atoms and 2 fluorine atoms

On the right hand side,

There are 2 nitrogen atoms and 6 fluorine atoms

Nitrogen atoms are balanced and only fluorine atoms have to be balanced by applying a stoichiometric coefficient of 3 in from of
`F_2` in the reactant side.

Thus, the balanced reaction is:-

`N_2+3F_2\rightarrow 2NF_3`

Coefficient in front of the
`F_2` in the balanced equation - 3