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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 71 times)

tiara099

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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%


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Marked as best answer by tiara099 on Jul 8, 2021

Eazy416

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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


sarah_brady415

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Reply 3 on: Yesterday
Excellent

 

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