Metallurgy and Isolation of ElementshardMCQ SINGLE⭐ Must-Do

Determine the sum of the stoichiometric coefficients of the products () when the Alumino-Thermite reMetallurgy and Isolation of Elements Chemistry Question

Question

Determine the sum of the stoichiometric coefficients of the products ($c + d$) when the Alumino-Thermite reduction of Manganese(II,III) oxide ($Mn_3O_4$) is balanced with the lowest possible whole numbers: $a Mn_3O_4 + b Al \rightarrow c Al_2O_3 + d Mn$.

Answer: C

💡 Solution & Explanation

The balanced Alumino-thermite reaction for Manganese is: $3Mn_3O_4 + 8Al \rightarrow 4Al_2O_3 + 9Mn$. The products are $Al_2O_3$ and $Mn$, with stoichiometric coefficients $c = 4$ and $d = 9$. The sum is $4 + 9 = 13$.

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