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How does a decomposition reaction differ from other types of reactions?

Answer 1

Decomposition has only one reactant whereas other reactions have two reactants.

An example of a decomposition reaction is shown below:
2NaCl(s) -> 2Na(s) + #Cl_2#

Here is a video which shows the chemical reaction that takes place when baking soda is heated. It is another example of a decomposition. The video discusses the chemical equation for the process and also shows you how to balance the equation.

Video from: Noel Pauller

Sufficient coverage, not too complicated here: https://tutor.hix.ai

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Answer 2

Cooper Adams

In contrast to other types of reactions, such as synthesis (combination), displacement, and combustion, where substances combine, replace, or react with oxygen, respectively, a decomposition reaction entails the breakdown of a single substance into two or more simpler substances.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.