Types of Chemical Reactions

Kenne Staplelton

Synthesis

A chemical reaction in which two or more substances react to form a single substance.

Equation: A+B=AB

2Na+Cl2=2NaCl

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Decomposition

A reaction in which a compound breaks down into two or more simpler substances.

Equation: AB=A+B

2H2O=2H2+O2

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Single Replacement

A reaction in which one element takes the place of another element in a compound.

Equation: A+BC=B+AC

2K+2H2O=H2+2KOH

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Double Replacement

A reaction where two different compounds exchange positive ions and form two new compounds.

Equation: AB+CD=AD+CB

CaCO3+2HCl=CaCl2+H2CO3

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Combustion

A reaction where a substance reacts rapidly with oxygen, often producing heat and light.

Equation: CH4_O2=CO2+H2O

2H2+O2=2H2O

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