Question

question 2 (multiple choice worth 3 points) (06.02r mc) which reaction is a single replacement reaction? 2h2 + o2 → 2h2o 2h2o2 → 2h2o + o2 koh + hcl → kcl + h2o cu + 2agno3 → 2ag + cu(no3)2

Explanation:

A single - replacement reaction has the general form A + BC → AC+ B. In the reaction Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂, copper (Cu) replaces silver (Ag) in silver nitrate (AgNO₃). The first reaction is a combination reaction, the second is a decomposition reaction, and the third is a neutralization (double - replacement) reaction.

Answer:

Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂