Consider the following chemical equations. Select the

Last updated: 7/10/2022

Consider the following chemical equations. Select the equations that represent chemical reactions, rather than physical changes. 1. 2NO(g) + O₂(g) - 2NO₂(g) 2. CO₂ (s) -> CO2(g) 3. Pb(NO3)2(aq) + 2AgCl(aq) -> PbCl2(s) + 2AgNO3(aq) I, II, and III I and II only I and III only I only II and III only