Objective: To identify the five types of chemical equations

What are the Types of Chemical Reactions?1. Synthesis Reaction2. Decomposition Reaction3. Single Replacement Reaction4. Double Replacement Reaction5. Combustion Reaction

Synthesis Reactions (Combination Reactions)A chemical change in which 2 or more

substances form a single new substance.

Key = 1 product

General Equation: A + B C

ExamplesH2 + O2

K + Cl2

Mg + O2

Remember: BrINClHOF!!

ExamplesH2 + O2 H2O

K + Cl2 KCl

Mg + O2 MgO

Remember: BrINClHOF!!

Decomposition ReactionsA chemical change in which a single

compound breaks down into two or more simpler substances.

Opposite of synthesis reaction.

Key = 1 reactant

General Equation: A B + C

ExamplesH2O

KCl

H2O2

ExamplesH2O H2 + O2

KCl K + Cl2

H2O2 H2 + H2O

Single Replacement ReactionsA chemical change in which one element replaces

a second element in a compound.A cation must replace a cation, and an anion must

replace an anion.To determine if the reaction occurs, you must use

the activity series.

Key = 1 element & 1 compound as reactants

General Equation: A + BC B + AC or

A + BC C + AB

ExamplesCu + AgNO3

K + H2SO4

Na + LiCl

F2 + Na Cl

ExamplesCu + AgNO3 CuNO3 + Ag

K + H2SO4 K2SO4 + H2

Na + LiCl No Reaction

F2 + Na Cl NaF + Cl2

Double Replacement ReactionsA chemical change involving the exchange of

cations between two compounds.

Takes place in aqueous solution and must produce a precipitate, a gas, or a covalent compounds such as water.

To determine if the reaction occurs, you must use the solubility rules.

Key = 2 compounds as reactants

General Equation: AB + CD AD + CB

ExamplesCaSO4 + NaCl

KI + Pb(NO3) 2

BaBr2 + KCl

ExamplesCaSO4 + NaCl No Reaction

KI + Pb(NO3) 2 PbI2 + KNO3

BaBr2 + KCl No Reaction

Combustion ReactionA chemical change in which an element or

compound reacts with oxygen producing energy in the form of heat or light.

A hydrocarbon and oxygen are always the reactants.

Carbon dioxide and water are always products.

General Equation: CxHy + O2 CO2 + H2O

ExamplesCH4 + 2O2 CO2 + 2H2O

Types of Chemical Reactions Video

http://www.schooltube.com/video/0bbcb832f2344f27b996/Type-of-Chemical-Reactions