Aluminum metal reacts with aqueous cobalt(II)nitrate to form aqueous aluminum nitrate and cobalt metal.What is the stoichiometric coefficient for aluminum when the chemical equation is balanced using the lowest,whole-number stoichiometric coefficients?

Question

Quizplus · Accepted Answer

The balanced chemical equation for the given reaction is:
2Al(s) + 3Co(NO3)2(aq) → 2Al(NO3)3(aq) + 3Co(s)
Here, the stoichiometric coefficient for aluminum is 2. Therefore, the answer is B.

Aluminum Metal Reacts with Aqueous Cobalt(II)nitrate to Form Aqueous Aluminum