Zinc reacting with lead (II) nitrate. Zinc coil was placed in a test tube (left frame). 0.5 M solution of lead (II) nitrate solution was then added to the test tube. Since zinc is more reactive than silver, a single-displacement reaction occurred: Zn + Pb(NO3)2 -> Pb + Zn(NO3)2. Next frame was taken few seconds after adding lead nitrate, next frame - after about 2 min, last frame - after about 12 min.