Which of the following best describes a double replacement reaction?

Answer 1

Atoms in one compound switch places with atoms in another compound.

Answer 2

A double replacment is a way of forming a new homogenous mixture. Generally double-replacement reactions involve the exchange of positive ions between two reacting compounds. Typically the compounds are in aqueous solution and are often characterized by the production of a precipitate. Explained: When dealing with two ionic compounds dissolved in water to form a homogenous mixture, there are two possiblities when they are mixed togeather. *They form a new homogenous mixture *A chemical reaction will occur,

Answer 3

It is a reaction between two compounds such that each exchanges radicals with other.

In this reaction one of the compounds formed is a precipitate which settles down at the

bottom of the cotton.

Example:-

Na2SO4 + BaCl2 -----> 2NaCl + BaSO4(s)

In this reaction, BaSO4 is a precipitate which settles down at the bottom and is insoluble in NaCl solution

Answer 4

A double replacement reaction involve change of bonds between two reactants as in this model:
A-B + C-D = A-C + B-D.