20.6k views
2 votes
Which equation represents a double replacement reaction

User Mansa
by
6.3k points

2 Answers

5 votes
LiOH+HCL LiCL+H2O represents a double replacement reaction.
User Eleonor
by
7.2k points
6 votes

Options

(1) 2Na + 2H2O → 2NaOH + H2

(2) CaCO3 → CaO + CO2

(3) LiOH + HCl → LiCl + H2O

(4) CH4 + 2O2 → CO2 + 2H2O

Answer:

(3) LiOH + HCl → LiCl + H2O

Step-by-step explanation:

A double displacement reaction, also known as a double replacement reaction or metathesis, 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.

A typical example is given as;

AB + CD --> BC + AD

The only reaction that matched the axample given in the options is that of option C,

User AyoO
by
6.1k points