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Consider the following reaction:

$$NaHC{O}_{3} (aq) + HCl (aq) \rightarrow NaCl (aq) + {H}_{2}O (l) + C{O}_{2} (g) \quad \quad \Delta H = +12.7\ \text{kJ}$$

Complete the following statements regarding the reaction.

This reaction is
Select Option endothermicexothermic
. When this reaction is performed in a coffee-cup calorimeter, the temperature of the calorimeter and its contents will
Select Option increasedecreaseincrease or decrease, depending on the amounts of substances that react
.
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