Answer: The correct answer is synthesis reaction.
Explanation:
Synthesis reaction is defined as the reaction in which two substances in their elemental state combine together to form a single molecule.
[tex]A+B\rightarrow AB[/tex]
Combustion reaction is defined as the reaction in which hydrocarbon in the presence of oxygen decomposes to form carbon dioxide and water molecule.
[tex]\text{Hydrocarbon }+O_2\rightarrow CO_2+H_2O[/tex]
Single replacement reaction is defined as the reaction in which more reactive element replaces a less reactive element from its chemical reaction.
[tex]A+BX\rightarrow AX+B[/tex]
Double replacement reaction is defined as the reaction in which exchange of ions takes place.
[tex]AB+CD\rightarrow CB+AD[/tex]
For the reaction given:
[tex]Ca(s)+Cl_2(g)\rightarrow CaCl_2(s)[/tex]
This reaction is a type of synthesis reaction because calcium and chlorine reacts to form calcium chloride.
