Question

Sort the chemical reactions based on whether they absorb or release energy.

Answer 1

Absorb to release: Activating a cold pack, photosynthesis, producing electrical current, burning a candle, baking bread.

This is assuming the process of baking bread refers to the heat released by the oven.

Answer 2

Answer;

Respiration in cells, photosynthesis, activating a cod pack- absorb energy

Producing electric current, burning a candle, baking bread- release energy

Explanation;

-The chemical reactions that absorb energy are called endothermic reactions. These reactions absorb more energy than they release. When endothermic reactions absorb energy, a temperature drop is measured during the reaction.

The chemical reactions that release energy to the surroundings are called exothermic reactions.Endothermic reactions are characterized by positive heat flow (into the reaction) and an increase in enthalpy.