chemical reactions

A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

HCl + NaOH --> NaCl + H2O

A combustion reaction is a type of chemical reaction where a compound and an oxidant is reacted to produce heat and a new product. The general form of a combustion reaction is the reaction between a hydrocarbon and oxygen to yield carbon dioxide and water: hydrocarbon + O2 → CO2 + H2O.

CH4 + O2 --> CO2 + H20

A synthesis reaction or direct combination reaction is a type of chemical reaction in which two or more simple substances combine to form a more complex product.

3Mg + N2 --> Mg3N2

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. These reactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds.

2Ni2O3 --> 4Ni + 3O2

A single-displacement reaction, also known as a single-replacement reaction, is a type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound.

A + BC --> B + AC