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Sort of. Sometimes a chemical reaction happens in two or more steps and can feature reactions of different types. One that includes both double replacement and decomposition reactions is that of a carbonate or bicarbonate with an acid such as vinegar and baking soda (acetic acid and sodium bicarbonate).

In this reaction the acetic acid and sodium bicarbonate first undergo a double displacement reaction forming sodium acetate and carbonic acid. The carbonic acid, which is unstable, then decomposes into water and carbon dioxide.

CH3CO2H + NaHCO3 --> NaCH3CO2 + H2CO3 followed by

H2CO3 --> CO2 + H2O gives the overall reaction of

CH3CO2H + NaHCO3--> NaCH3CO2 + CO2 + H2O

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No, a reaction cannot be both a decomposition and a double replacement at the same time. A decomposition reaction involves a single compound breaking down into two or more simpler substances, while a double replacement reaction involves an exchange of ions between two compounds to form two new compounds.

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Q: Can a reaction be both a decomposition and double replacement?
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What is a double decomposition reaction?

A double decomposition reaction, also known as a double replacement reaction, occurs when ions from two compounds exchange places to form two new compounds. This type of reaction typically involves the formation of a precipitate or gas, and takes place in aqueous solutions. An example is the reaction between silver nitrate and sodium chloride to form silver chloride and sodium nitrate.


A reaction between an acid and a base is both a neutralization reaction and what other kind of reaction?

A reaction between an acid and a base is both a neutralization reaction and a type of double displacement reaction, where the cations and anions of the two reactants switch places to form new compounds.


What type of reaction occurs between MgO and Ca?

A chemical reaction between MgO and Ca will form calcium magnesium oxide (CaMgO3) as a product. This reaction involves the exchange of ions between magnesium oxide and calcium to form a compound with both elements.


What is an adduct?

An adduct is the product of an addition reaction - a reaction in which radicals are added to both sides of a double or triple bond.


What is the difference between dissociation and decomposition?

Dissociation is when a compound breaks apart into its component ions, usually as it dissolves in water. Dissociation is considered a physical change as the substance that dissociates retains its chemical identity, and can be fairly easily restored to its original state. Examples of dissociation: NaCl --> Na+ + Cl- or HNO3 --> H+ + NO3- Decomposition is when a substance breaks down into to or more different substances. This is considered a chemical change because the substance that breaks down loses its chemical identity it is usually not reversible. Examples: (NH4)2Cr2O7 --> N2 + 4H2O + Cr2O3 or 2H2O2 --> 2H2O + O2