I remember a scientific experiment. Put something on the plate and some ice cubes. The ice cubes will react with that thing, emitting white smoke, which can be ignited.

Can the ice be lit? Is this a joke? No, in the world of chemistry, without lighters and matches, ice can really burn instantly with a glass rod and will not go out for a long time.

First, pour two pieces of potassium permanganate into a small dish and grind it into powder with a spoon. Then drop a few drops of concentrated acid on the potassium permanganate powder and stir it evenly with a glass rod (sulfuric acid is very corrosive, so pay special attention to safety). Then I put a small piece of calcium carbide on the ice. Finally, I dipped the glass rod into the newly mixed solution and gently touched the ice. I made it! Just when the glass rod touched the ice, the ice was ignited! And the fire is getting bigger and bigger.

Principle: "Calcium carbide reacts with water to generate flammable calcium carbide gas. Concentrated acid and potassium permanganate are both strong oxidants, which can oxidize calcium carbide gas and make it reach the ignition point immediately.

Reaction principle: cac2+2h2o = = ca (oh) 2+c2h2 =