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CHEMICAL REACTIONS 4TypesofReactions - Coggle Diagram
CHEMICAL REACTIONS 
COMBINATION
A combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product).
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COMBUSTION
Combustion, a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.
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DOUBLE REPLACEMENT
A double-replacement (or double-displacement) reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds. Double-replacement reactions can form precipitates, gases, or molecular compounds.
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SINGLE REPLACEMENT
A single replacement reaction, sometimes called a single displacement reaction, is a reaction in which one element is substituted for another element in a compound.
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DECOMPOSITION
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to break up into constituent parts by or as if by a chemical process : decay, rot fruit decomposes.
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NEUTRALIZATION
A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7. The neutralization of a strong acid and weak base will have a pH of less than 7, and conversely, the resulting pH when a strong base neutralizes a weak acid will be greater than 7.
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