Why Are Aqueous Solutions of Highly Charged Metal Ions, Such

question 124

Multiple Choice

Why are aqueous solutions of highly charged metal ions, such as , usually acidic?

• A)The highly charged ion strips hydrogen ions away from water as if forms and releases them into the solution causing the solution to become acidic.
• B)As the water molecule binds to the aluminum ion, the H-O bond becomes more polar. This means that the water molecule is more readily able to form hydrogen ions, which makes the solution acidic.
• C)False! ions tend to make aqueous solutions basic since they pull the OH^⁻ ion from the water molecule.
• D)The formation of the oxide releases hydrogen ions to the aqueous solution making it acidic.

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