Question

what reaction has the following general formula:
a + cd --> c + ad
options: single replacement, combination, combustion, decomposition, double replacement

Explanation:

In a single replacement reaction, one element replaces another element in a compound. The general formula for a single replacement reaction is \( A + CD
ightarrow C + AD \), where element \( A \) replaces element \( C \) in the compound \( CD \) to form \( AD \) and \( C \). Combination reactions involve combining substances (e.g., \( A + B
ightarrow AB \)), combustion reactions involve burning (usually with oxygen), decomposition reactions break down a compound (e.g., \( AB
ightarrow A + B \)), and double replacement reactions involve two compounds exchanging ions (e.g., \( AB + CD
ightarrow AD + CB \)). So the reaction \( A + CD
ightarrow C + AD \) fits the single replacement reaction.

Answer:

A. Single Replacement