Theo mixes cake batter and places it in the oven at 350°F for 45 minutes. Explain what type of reaction baking a cake represents in terms of energy.

Answer:

Baking a cake represents an endothermic reaction. This is because heat energy from the oven must be absorbed by the batter for the chemical reactions (cooking) to occur. In an endothermic reaction, energy is taken in from the surroundings.