Question

Explain the following type of reactions. Also, write the chemical equations involved. a) Combination reaction b) Decomposition reaction c) Displacement reaction d) Double Displacement reaction

Answer 1

a) CaO+CO2=CaCO3
b)CaCO3= CaO + CO2
c)CuSO4 + Zn= ZnSO4 + Cu
d)HCL + NaOH= NaCl+ H20

Answer 2

A, Combination reaction==> A chemical reaction in which two or more elements combine to form a single substance is called a Combination reaction , for example

CaO + CO2 ==> CaCO3

B, Decomposition reaction==> A reaction in which a substance decomposes to give two or more substances us called decomposition reaction, for example

CaCO3 ==> CaO + CO2


C, Displacement reaction==> A reaction in which a more active element displaces less active element from its salt solution is called displacement reaction, for example

CuSO4 + Fe ==> FeSO4 + Cu

D, Double displacement reaction==> A reaction in which there is a exchange of ions us called double displacement reaction, for example

NaCl +AgNO3 ==> NaNO3 + AgCl