of potassium 28. Manganese(IV) oxide is a brown insoluble solid often found as a
ID: 1007699 • Letter: O
Question
of potassium 28. Manganese(IV) oxide is a brown insoluble solid often found as a product of reactions permanganate. What is the formula of manganese(IV) oxide? a. MnO2 b. MnO c. Mn2O2 d. Mn4C e. MnO Fe0s(s) and powdered aluminum can react with great output of heat to form molten iron an reaction equation is balanced, what are the stoichiometric coefficients in the following order: FezOs, Al, Fe, Al O;? 29. aluminum can react with great output of heat to form molten iron and Al Os. When this d. 2, 2, 2, 2 b. 1, 2, 2, 1Explanation / Answer
28. Answer e:
2KMnO4 K2MnO4 + MnO2(s) + O2
Solid potassium permanganate decomposes when heated and it forms MnO2
The formula of Manganese(IV)oxide is MnO2
29. 1 Fe2O3(s) + 2 Al(s) = 2 Fe(s) + 1 Al2O3(s)
Answer b: 1, 2, 2, 1
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