Respuesta :
Answer: decomposition
Explanation:
1 . Combustion is a type of chemical reaction in which a hydrocarbon reacts with oxygen to form carbon dioxide ans water along with liberation of large amount of energy.
2. Decomposition is a type of chemical reaction in which a single reactant gives two or more than two products.
[tex]CaCO_3\rightarrow CaO+CO_2[/tex]
3. Single replacement is a type of chemical reaction in which a more reactive element displaces the less reactive element from its slat solution.
4. Synthesis is a type of chemical reaction in which two or more than two reactants combine together to give a single product.
Answer: The correct answer is decomposition reaction.
Explanation:
For the given options:
Option 1: Combustion
Combustion reaction is defined as the chemical reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide gas and water molecule.
[tex]\text{Hydrocarbon}+O_2\rightarrow CO_2+H_2O[/tex]
Option 2: Decomposition
Decomposition reaction is defined as the reaction in which a single large substance breaks down into two or more smaller substances.
[tex]AB\rightarrow A+B[/tex]
Option 3: Single replacement
Single replacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction.
The reactivity of metal is determined by a series known as reactivity series. The metals lying above in the series are more reactive than the metals which lie below in the series.
[tex]A+BC\rightarrow AC+B[/tex]
Metal A is more reactive than metal B.
Option 4: Synthesis
Synthesis reaction is defined as the reaction in which smaller substances combine in their elemental state to form a larger substance.
[tex]A+B\rightarrow AB[/tex]
Hence, the correct answer is decomposition reaction.
