Question

what type of chemical reaction is shown:$ce{h_{2}so_{4} + 2 nacn -> 2 hcn + na_{2}so_{4}}$single replacementsynthesisdouble replacementdecompostion

Explanation:

In this reaction, the positive ions (H⁺ and Na⁺) and negative ions ($\text{SO}_4^{2-}$ and $\text{CN}^-$) of the two reactants swap places to form new compounds, which matches the definition of a double replacement reaction.

Answer:

Double Replacement