Question

What number should be placed in front of HF to balance this chemical

equation?
H₂+ F₂ → __HF

Answer 1

2

Step-by-step explanation:

on L.H.S no of hydrogen atoms is 2

and no. of fluorine atoms are 2 .

Hence ,

in order to balance this equation we need to make the hydrogen and fluorine atoms equal on both left and right hand side which can be done by filling the blank with value 2.