Question

which generalized equation represents a double - replacement reaction? (1 point) a + b → ab a + bc → b + ac ab → a + b ab + cd → ad + cb

Explanation:

In a double - replacement reaction, the positive and negative ions of two ionic compounds exchange places. The general form is \(AB + CD
ightarrow AD+CB\), where \(A\) and \(C\) are cations and \(B\) and \(D\) are anions. The first option \(A + B
ightarrow AB\) is a synthesis reaction. The second option \(A + BC
ightarrow B + AC\) is a single - replacement reaction. The third option \(AB
ightarrow A + B\) is a decomposition reaction.

Answer:

D. \(AB + CD
ightarrow AD + CB\)