Question

The equation for the chemical reaction shown is not balanced. What number should replace the question mark to balance this equation?

2KBr + ?Pb(NO3)2 → 2KNO3+ PbBr2

A. The equation is balanced as is.
B. A 2 is required.
C. A 3 is required.
D. A 6 is required.

Answer 1

@Imtiaz7

Answer 2

The '3' after 'NO' is tiny and in the corner. Same goes for the '2' that follows the parentheses and 'Br'.

Answer 3

wait for a while plz

Answer 4

Okay.

Answer 5

I believe the answer is A.

Answer 6

yes it is

Answer 7

Thanks!

Answer 8

bc the number of atoms of ements in compound are equal!!!

Answer 9

do you understand that?
next question

Answer 10

Yes, I do! :D I am going to post the next question in Physics....

Answer 11

ok :)

Answer 12

I posted the next question. :)