Question

3. For each of the following situations, select in which direction the reaction will proceed: $CaCO_3(s) + H_2O(l) \rightleftharpoons Ca^{2+}(aq) + HCO_3^-(aq) + OH^-(aq)$ $\Delta H = ??$ Decrease a. $[CaCO_3]$ toward products (right) / toward reagents (left) / stay the same Increase b. $[OH^-]$ toward products (right) / toward reagents (left) / stay the same Decrease c. $[HCO_3^-]$ toward products (right) / toward reagents (left) / stay the same Increase d. $[H^+]$ toward products (right) / toward reagents (left) / stay the same

          3. For each of the following situations, select in which direction the reaction will
proceed:
$CaCO_3(s) + H_2O(l) \rightleftharpoons Ca^{2+}(aq) + HCO_3^-(aq) + OH^-(aq)$
$\Delta H = ??$


Decrease
a.
$[CaCO_3]$
toward products (right) / toward reagents (left) / stay the same
Increase
b.
$[OH^-]$
toward products (right) / toward reagents (left) / stay the same
Decrease
c.
$[HCO_3^-]$
toward products (right) / toward reagents (left) / stay the same
Increase
d.
$[H^+]$
toward products (right) / toward reagents (left) / stay the same

3. For each of the following situations, select in which direction the reaction will
proceed:
CaCO3(s) + H2O(l) ⇌ Ca^2+(aq) + HCO3^-(aq) + OH^-(aq)
Δ H = ??

Decrease
a.
[CaCO3]
toward products (right) / toward reagents (left) / stay the same
Increase
b.
[OH^-]
toward products (right) / toward reagents (left) / stay the same
Decrease
c.
[HCO3^-]
toward products (right) / toward reagents (left) / stay the same
Increase
d.
[H^+]
toward products (right) / toward reagents (left) / stay the same

Added by Cindy R.

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