it is important for scientists to know how much energy is given off or absorbed in a chemical reaction…

it is important for scientists to know how much energy is given off or absorbed in a chemical reaction. which options below would indicate an exothermic reaction? δh = - δh = + energy is considered a reactant in the reaction: a + b + energy → c + d energy is considered a product in the reaction: a + b → c + d + energy energy is released in the reaction. energy is absorbed in the reaction. done

it is important for scientists to know how much energy is given off or absorbed in a chemical reaction. which options below would indicate an exothermic reaction? δh = - δh = + energy is considered a reactant in the reaction: a + b + energy → c + d energy is considered a product in the reaction: a + b → c + d + energy energy is released in the reaction. energy is absorbed in the reaction. done

Answer

Brief Explanations:

In an exothermic reaction, heat is released. The enthalpy change ($\Delta H$) for an exothermic reaction is negative. Also, when energy is a product in the reaction equation, it means energy is released.

Answer:

$\Delta H=-$, Energy is considered a product in the reaction: A + B → C + D + energy, Energy is released in the reaction.