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Author Question: What is the percent yield if 122 grams of SiO2 are made from 246 g of Cr2O3 by the following ... (Read 32 times)

tiara099

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on: Jul 8, 2021

Question 1

What is the oxidation number change for the manganese atom in the following unbalanced reduction half-reaction:

MnO4- (aq) + H+(aq) → Mn2+(aq) + H2O(l)

◦ -7
◦ -5
◦ +5
◦ +7

Question 2

What is the percent yield if 122 grams of SiO2 are made from 246 g of Cr2O3 by the following equation?

3 Si(s) + 2 Cr2O3(s) → 3 SiO2(s) + 4 Cr(l)

◦ 83.6%
◦ 49.6%
◦ 125%
◦ 33.1%
◦ 59.3%
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by tiara099 on Jul 8, 2021

Eazy416

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Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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tiara099

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Reply 2 on: Jul 8, 2021
YES! Correct, THANKS for helping me on my review

dreamfighter72

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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