There are six main types of reactions

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Presentation transcript:

There are six main types of reactions Synthesis Decomposition Combustion Single Replacement (Single Displacement) Double Replacement (Double Replacement) Neutralization

Synthesis A combination of two or more substances to form a larger substance. A + B  AB Examples: Hydrogen + Oxygen  Water Sodium + Chlorine  Sodium Chloride

Decomposition The breaking apart of one substance into two or more parts. AB  A + B Examples: Water  Hydrogen + Oxygen Calcium carbonate  calcium oxide + carbon dioxide

Combustion A special form of decomposition which involves a reaction between a hydrocarbon (has C and H) and oxygen to form carbon dioxide and water vapor. Example: Methane + oxygen  carbon dioxide + water

Single Replacement or Single Displacement An element in a compound is replaced by a free element. A + BC  AC + B Examples: Potassium + water  potassium hydroxide + hydrogen Lead (II) sulfide + iron  iron (II) sulfide + lead

Double Replacement or Double Displacement Two elements switch places with each other. AB + CD  AD + CB Examples: Zinc chloride + sodium bromide  zinc bromide + sodium chloride copper (II) sulfate + silver nitrate  silver sulfate + copper (II) nitrate

Neutralization A special form of double replacement in which an acid and a base form salt and water. Examples: Hydrochloric acid + sodium hydroxide  sodium chloride + water phosphoric acid + calcium hydroxide  calcium phosphate + water