No its a combustion reaction, not a double replacement
You mean balance it? 2C2H6 + 7O2 -> 4CO2 + 6H2O
No, the reaction between NaOH and HCl is a neutralization reaction, not a double replacement reaction. In a neutralization reaction, an acid and a base react to form a salt and water. The products are NaCl (salt) and H2O (water).
This is a double replacement reaction.
CuO + 2HCl --> CuCl2 + H2O This equation is a double displacement; because Cu (Copper) has pushed out O (oxygen), so that Cu can be with Cl (chlorine). Also, H (Hydrogen) has pushed out Cl to be with O. Both elements have pushed out their partner, therefore a double displacement.
The given equation is a balanced chemical equation representing a single replacement reaction, where zinc (Zn) replaces copper (Cu) in the copper sulfate (CuSO4) solution. This reaction results in the formation of zinc sulfate (ZnSO4) and solid copper (Cu).
The balanced chemical equation for the reaction C2H6 + O2 → CO2 + H2O is: 2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
The balanced chemical equation for the reaction C2H2 + H2 → C2H6 is: C2H2 + 2H2 → C2H6
This reaction is called "metal-metal exchange reaction".
A double replacement reaction.
double-replacement
Double Replacement
Double-replacement