A chemical reaction is the process by which chemical substances undergo changes. During this process, bonds are broken or activated. Here are the types of chemical reactions:
Activation energy
The minimum amount of energy required to initiate a chemical reaction is known as activation energy. This energy is measured in joules, kilojoules, and kilocalories per mole. The higher the activation energy, the more intense the reaction will be. The activation energy of a reaction can be as low as one kilojoule per mole. However, many chemical reactions require much more energy than this minimum amount.
To understand the process of a chemical reaction, we must first understand what activation energy is. It is the energy needed to get a chemical reaction off the ground. Activation energy is provided by heat from the chemical reaction. Activation energy is often difficult to measure and can be tricky to calculate. However, it is worth looking into in a chemical reaction. You can calculate the activation energy of a reaction by following these steps:
Physical changes
In simple terms, physical changes are the transformation of a substance from one state to another. When we cut paper in half, freeze water, or bend silverware, we undergo physical changes. These changes only change the physical properties of the substance, not its composition of molecules. In contrast, a log is burned, causing a chemical reaction. While the log loses its physical properties, the number of atoms and the shape of its molecules remains the same.
Chemical reactions are different from physical changes, because they change the structure of a substance without affecting its composition. Physical changes involve the combination of two or more substances to form a new substance, which is different from the original one. Chemical changes do not destroy matter, but rather change the particle structure of one substance. The number of particles in the new substance remains the same as they were before the reaction. This means that physical changes are more frequent than chemical ones.
Bonds broken
If you’ve ever wondered about the process of chemical change, you’ve likely heard of the term “chemical reaction.” This process consists of a series of reactions that result in a change in a substance’s chemical composition. The end result of a chemical reaction is a different type of substance. The substances involved in a chemical reaction can include oxygen, water, and even other chemicals. Here are some examples of chemical reactions.
A chemical reaction occurs when two substances react and form a new substance. The products of this process include molecules, compounds, and products. Chemical reactions are controlled by the law of conservation of mass. Because no atom is destroyed during a chemical reaction, no atom is lost or destroyed. The products of the reaction result in new substances, allowing for the production of new goods. If you’re unsure about the chemical reactions, you can study the laws of chemical reaction with BYJU’S chapter-wise solutions to NCERT books.
Types of chemical reactions
Chemical reactions can be classified as redox, acid base, oxidation, reduction, or dissociation. These reactions take place between the two reactants and involve a transfer of electrons. Examples of redox reactions are combustion, rusting, respiration, photosynthesis, and batteries. Some chemical reactions can also be described as double displacement reactions. In this type of reaction, two different compounds exchange ions. The result is a white solid.
A decomposition reaction occurs when one component is broken down into two or more smaller components. This reaction requires energy changes in the environment, which breaks the bonds within the compound. Calcium carbonate, for example, can decompose into its constituent components – calcium and oxygen. The calcium ions in this reaction become CaO. CaO is used to make cement. Similarly, a double replacement reaction occurs when two compounds are mixed together.
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