Reaction between zinc metal and lead nitrate inside a soft gel generated a forest of lead trees.
Purple cabbage changed to yellow color in sodium hydroxide solution.
Purple cabbage changed to red color in hydrochloric acid.
Purple Teornia fournieri flower changed to green and yellow colors in sodium hydroxide solution.
Reaction between magnesium metal and acetic acid generated hydrogen bubbles.
Osmotic growth of cobalt chloride inside sodium silicate solution.
Osmotic growth of ferric chloride inside sodium silicate solution.
Reaction between eggshell and hydrochloric acid generated bubbles of carbon dioxide.
Adding a few drops of copper sulfate solution into sodium hydroxide solution generated a blue precipitation of basic copper sulfate.
Crystallization of copper sulfate.
Adding a few drops of silver nitrate solution into sodium chloride solution generated a white precipitation of silver chloride.
Adding a few drops of silver nitrate solution into sodium thiosulfate solution generated an orange precipitation of silver thiosulfate.
When a sheet of zinc metal was dropped into a solution containing copper sulfate and sulfuric acid, two things happened: (1) hydrogen bobbles were generated due to the reaction between zinc and sulfuric acid, and (2) reddish copper emerged due to the reaction between zinc and copper sulfate.
Reaction between zinc metal and copper sulfate solution generated copper metal, which fell off the surface due to gravitational force.
