Question

the formula for aluminum hydroxide is
a. al₂(oh)₃
b. al(oh)₃
c. al₂o₃
d. aloh

Explanation:

Step1: Determine the charge of aluminum ion

Aluminum (\(Al\)) has a charge of \(+3\) (\(Al^{3+}\)).

Step2: Determine the charge of hydroxide ion

Hydroxide (\(OH\)) has a charge of \(-1\) (\(OH^{-}\)).

Step3: Balance the charges

To balance the charges, we need 3 hydroxide ions for 1 aluminum ion. So the formula is \(Al(OH)_3\).

Answer:

B. \(Al(OH)_3\)