TYPES OF REACTION

Types of Chemical ReactionsExplanationGeneral Reaction
Combination reactionTwo or more compounds combine to form one compound.A + B → AB
Decomposition reactionThe opposite of a combination reaction – a complex molecule breaks down to make simpler ones.AB → A + B
Precipitation reactionTwo solutions of soluble salts are mixed resulting in an insoluble solid (precipitate) forming.A + Soluble salt B  → Precipitate + soluble salt C
Neutralization reactionAn acid and a base react with each other. Generally, the product of this reaction is salt and water.Acid + Base → Salt + Water
Combustion reactionOxygen combines with a compound to form carbon dioxide and water. These reactions are exothermic, meaning they give off heat.A + O2 → H2O + CO2
Displacement reactionOne element takes place with another element in the compound.A + BC → AC + B

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