Question

When the following equation is balanced with the lowest whole number coefficients possible, what is the coefficient in front of AlCl3?
Al (s) + ZnCl2 (aq) ----> Zn (s) + AlCl3 (aq)

- 1
- 2
- 3
- 6

Answer 1

Answer: The coefficient in front of $AlCl_3$ is '2'.

Explanation:

Coefficient is defined as number coming before the formula unit of molecule of a compound in chemical reaction.

$2Al(s)+3ZnCl2(aq)\rightarrow 3Zn(s)+2AlCl3(aq)$

From the balance chemical equation, 2 moles of aluminum are reacting with 3 moles of zinc chloride to give 3 moles of zinc metal and 2 moles of aluminium chloride as a product.

Here, the coefficient of the aluminum chloride is '2'.

Answer 2

coefficient is 2
2Al (s) + 3 ZnCl2s (aq) --> 3 Zn (s) + 2 AlCl3 (aq)