Question

Question #4cc71

Answer 1

Double displacement reaction is a chemical reaction in which 2 ionic compound change switch their components to make new compound, you can think about is as swapping of anions or cations between the two compounds:

Let us take for example:

`BaCl_2 + Na_2SO_4 rarr BaSO_4 + 2NaCl`

`Ba^(2+)2Cl^(-) +2Na^+SO_4^(2-)`

by switching the anions or cations we get:
`Ba^(2+)SO_4^(2-) +2Na^+2Cl^(-)`

`Ba^(2+)2Cl^(-) +2Na^+SO_4^(2-) rarr Ba^(2+)SO_4^(2-) +2Na^+2Cl^(-)`
`rarr`
`BaCl_2 + Na_2SO_4 rarr BaSO_4 + 2NaCl`