Q. 55.0( 2 Votes )

Calcium oxide rea

Answer :

D

An exothermic reaction is a chemical reaction that releases energy through light or heat and there is one product formed and hence it is a combination reaction.


OR


D


Double displacement is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.


Double displacement is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.


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