Question

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

2Al + ?Cl2 → 2AlCl3

A.
the number 4

B.
the number 5

C.
the number 2

D.
the number 3

Answer 1

Is it D? @ChantySquirrel1129**

Answer 2

@AloneS

Answer 3

Well, to balance it out, you have to make BOTH sides equal! So let's see! :3

Answer 4

Okay then it's 2?

Answer 5

You have to look at EACH element and count how many of the elements are on each side c:

and no, not 2 :)

Answer 6

Okay.