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Why do chemical reactions always involve a chemical change?

Chemical bonds always break in chemical reactions, causing changes in energy.


Why do reactions always involve a change in energy?

Chemical bonds always break in chemical reactions, causing changes in energy.


Do Chemical reactions involve the interplay of the electrons of the reacting chemical?

always.


Chemical reactions always involve changes in a chemical?

There will always be changes in one of the reactants. In some chemical reactions, one of the chemicals works as a catalyst to encourage a reaction between two or more chemicals but does not change during the reaction.


Why do chemical reactions always involve a change in energy?

Chemical reactions involve the breaking and formation of bonds between atoms, which requires energy. The energy change in a reaction is needed to overcome the activation energy barrier and initiate the process. This change in energy is essential for the rearrangement of atoms and the formation of new substances.


A chemical property is a change in what?

There are many different possible property changes in a chemical change. You must post the specific reaction for anyone to tell you exactly.


Why do we say that chemical reactions always involve changes in energy?

Chemical reactions involve the breaking and forming of chemical bonds, which requires energy to overcome or release. This results in changes in the potential energy of the system. Additionally, the activation energy required to start a chemical reaction is a clear demonstration of energy change.


What type of chemical reaction classes always involve oxidation?

The combination of two elements (a metal and a nonmetal) is always a redox reaction.


Are melting butter and melting ice cream are both physical change or chemical change?

They're both physical changes. Phase changes are always physical changes. Chemical changes only involve chemical reactions - a change in the identity of the substance. That's why phase changes are physical changes. Ice cream remains ice cream when it melts.


Do reactions always involve a transfer of energy?

Yes, reactions typically involve a transfer of energy between molecules. This transfer can result in breaking or forming chemical bonds, leading to changes in the energy of the system. Whether energy is absorbed or released depends on the specific reaction and its thermodynamic properties.


Is energy involved in all changes?

yes all changes involve exchange in energy


What changes are always involved in chemical reactions?

In a chemical reaction, changes in the arrangement of atoms and bonds occur as new substances are formed. Additionally, changes in energy levels, such as absorption or release of heat or light, are also common in chemical reactions. Moreover, changes in properties, such as color, odor, or state of matter, can often be observed as a result of a chemical reaction.