The chemical reaction in which heat is absorbed is known as _______ reaction. [endothermic/exothermic]

Explanation

To solve the question, "The chemical reaction in which heat is absorbed is known as _______ reaction," we can follow these steps:

### Step 1: Understand the Terms
- The question involves two types of reactions: endothermic and exothermic.
- "Thermic" refers to heat, so we need to understand what "endo" and "exo" mean in this context.

### Step 2: Define Endothermic and Exothermic Reactions
- **Endothermic Reaction**: This is a reaction that absorbs heat from its surroundings. The term "endo" means "inside" or "within," indicating that heat is taken in.
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