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Author Question: Choose the reaction that illustrates DfH for NaHCO3. (Read 182 times)

sjones

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on: Nov 18, 2019

Question 1

Choose the reaction that illustrates DfH° for Ca(NO3)2.
◦ Ca(s) + N2(g) + 3O2(g) → Ca(NO3)2(s)
◦ Ca(s) + 2N(g) + 6O(g) → Ca(NO3)2(s)
◦ Ca(NO3)2(s) → Ca(s) + N2(g) + 3O2(g)
◦ Ca(NO3)2(aq) → Ca2+(aq) + 2NO3-(aq)
◦ Ca2+(aq) + 2NO3-(aq) → Ca(NO3)2(aq)

Question 2

Choose the reaction that illustrates DfH° for NaHCO3.
◦ Na(s) + 2 H(g) + C(s) + 3 O(g) → NaHCO3(s)
◦ Na(s) + H2(g) + C(s) + O2(g) → NaHCO3 (s)
◦ Na(s) + 1/2 H2(g) + C(s) + 3/2 O2(g) → NaHCO3 (s)
◦ Na+(aq) + HCO3 -1 (aq) → NaHCO3 (s)
◦ Na+(aq) + H2O (l) + CO2 (g) → NaHCO3(s)
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
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Marked as best answer by sjones on Nov 18, 2019

flexer1n1

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Reply #1 on: Nov 18, 2019
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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sjones

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Reply 2 on: Nov 18, 2019
Wow, this really help

mochi09

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Reply 3 on: Yesterday
Excellent

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