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Author Question: Choose the reaction that illustrates DfH for NaHCO3. (Read 180 times)

sjones

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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)


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Marked as best answer by sjones on Nov 18, 2019

flexer1n1

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sjones

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Reply 2 on: Nov 18, 2019
Thanks for the timely response, appreciate it


amcvicar

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Reply 3 on: Yesterday
Gracias!

 

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