Question

____Al + ____ZnCl2 --> ____AlCl3 + ____Zn What numbers are needed to balance? Use the following format: 1, 1, 1

Answer 1

1 Al + 2 ZnCl2 -> 2 AlCl3 + 1 Zn

Step-by-step explanation:

The equation needs to be balanced so that there is an equal number of atoms of each element on both sides of the equation. To balance this equation, the coefficients 1, 2, 2, and 1 need to be placed in front of Al, ZnCl2, AlCl3, and Zn, respectively:

1 Al + 2 ZnCl2 -> 2 AlCl3 + 1 Zn

This means that for every 1 atom of aluminum, there are 2 atoms of zinc chloride, which react to form 2 atoms of aluminum chloride and 1 atom of zinc.

ALLEN

Answer 2

2 Al + 3 ZnCl2 → 2 AlCl3 + 3 Zn