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Like baking a cake once you heat it, it becomes a new substance. With a chemical change you can never go back to what you had before. Also like a car rusting, a match being lite, and burning wood ( the new substance for wood is ash)

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12y ago

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Related Questions

Energy is lost from a reaction in a form of what?

Energy is lost from a reaction in the form of heat. This heat is often referred to as exothermic heat, as it is released from the system during the reaction.


In what form is the energy released in this reaction?

In an exothermic reaction heat energy is released.


What chemical reaction describes where energy is absorbed?

Endothermic, if the energy is in the form of heat.


What is a reaction that releases energy in the form of heat?

Exothermic reaction


What does the burning process need to work?

The burning process typically requires fuel (such as wood or gasoline), oxygen, and heat to initiate and sustain a combustion reaction. This reaction releases energy in the form of heat and light.


Reaction that absorbs energy in the form of heat?

Endothermic reaction. In an endothermic reaction, energy is absorbed by the system from the surroundings in the form of heat, causing the surroundings to cool down.


Energy is given off in the form of heat during a?

exothermic reaction. This type of reaction releases energy to the surroundings as heat.


What is true when two reactants combine in an exothermic reaction?

In an exothermic reaction, heat is released to the surroundings. This means the products have lower energy than the reactants, and the reaction is typically spontaneous. Additionally, the temperature of the reaction mixture will increase as a result of the release of heat.


An endothermic reaction is one that uses which form of energy?

An endothermic reaction is one that uses chemical energy.


If the energy released in a chemical reaction primarily in the form of heat of reaction?

yes


A chemical reaction that absorbs energy in the form of heat is called?

Endothermic reaction


What happens to energy during a chemical reaction?

During a chemical reaction, energy is either absorbed or released. If energy is released, it is usually in the form of heat. If energy is absorbed, the reaction requires an external energy source to proceed.