Question

state the correct answer

Answer 1

Answer:c

Explanation:

Answer 2

Answer:

OPTION C

Explanation:

Definitely exothermic, acid-base reactions are always exothermic. Especially since you noted that it says in the instructions that the flask should become warm - indicating that it heat was released by the reaction. However if you didn't find a rise in temperature it could have been due to experimental error. But do note that when standardizing NaOH you are reacting it with a different substance than HCl, so the reaction is different.

Exothermic reactions mean that the energy of the products is less than the energy of the reactants, and so the change in enthalpy is negative.

HOPE IT HELPS!!!:-)

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