Chemical reactions

Do you want to improve your knowledge about chemical reactions, their characteristics and types?

The online chemical reaction simulations on this page will help you to better understand how chemical reactions occur and the most important types of reactions.

Chemical reactions are processes in which the atoms of reactants are rearranged to form new molecules or compounds. These processes are fundamental in chemistry and in everyday life.

A chemical reaction can be classified into different types, depending on the nature of the reactants and products, and the way in which the transformation is carried out. Some of the most common types are:

Synthesis or combination reactions. Two or more reactants combine to form a single product. For example, the synthesis of water from hydrogen and oxygen.

Decomposition reactions. A single reactant is split into two or more products. For example, the decomposition of hydrogen peroxide into water and oxygen.

Substitution or displacement reactions. One element or functional group of a reactant is replaced by another element or functional group. For example, the reaction of an acid with a metal to form a salt and release hydrogen.

Oxidation-reduction reactions. A transfer of electrons occurs between the reactants, and may involve the gain or loss of electrons. For example, the oxidation of iron in the presence of oxygen to form iron oxide.

Precipitation reactions. A solid is formed from aqueous solutions.

Acid-base reactions. A proton transfer occurs between the reactants.

Each type of chemical reaction has specific characteristics. For example, synthesis reactions tend to be exothermic, while decomposition reactions tend to be endothermic.

In summary, the online chemical reaction simulations on this page are a great way to deepen your understanding of chemical reactions – try them out!

Precipitation reactions

In a precipitation reaction, two soluble compounds react to form an insoluble solid that precipitates in the bottom. This simulation allows you to select several compounds and observe their reactions.
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Neutralization reactions

In a neutralization reaction, an acid and a base dissolved in water react to produce a salt that remains dissolved in the water. This simulation allows you to select various combinations of acid and base and observe their reactions.
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Reaction rate

In this simulation it is possible to observe how the concentration of the initial compounds and that of the final compound vary in a reaction.
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Acid-Base solutions

In the last of these online chemical reaction simulations we will study how different strong and weak acids are. Use the tools in the computer lab to find out! Dip the paper or meter into the solution to measure pH, or use the electrodes to measure conductivity. Then observe how concentration and strength affect the pH Can a solution of a weak acid have the same pH as a solution of a strong acid?


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