Text AlternativeMultiple Select QuestionSelect all that applyWhich of the reactions shown are endothermic? Select all that apply.Multiple select question.ABC

To determine which reactions are endothermic, we need to understand that endothermic reactions absorb heat from their surroundings.

1. Definition of Endothermic Reactions:

   • In an endothermic reaction, the products have higher energy than the reactants, meaning that heat is taken in, causing a drop in temperature in the immediate surroundings.

2. General Signs of Endothermic Reactions:

   • A temperature decrease in the surroundings during the reaction.
   • Positive value for enthalpy change (ΔH).

Without specific details about reactions A, B, and C, it is difficult to determine which, if any, are endothermic.

Response:

To answer this multiple-select question, you should review the heat changes (temperature, enthalpy variations) or any provided thermodynamic data for reactions A, B, and C. Select the reactions demonstrating the characteristics of endothermic reactions.