Chemistry is a science of substances. Different substances, when mixed, change into new compounds. The chemicals are so much beneficial in our life that chemistry has become a part of our daily life. Thus, the toothpaste we use, fertilizers for agriculture, our medicines & drugs, plastics, the alloys of metals & dyes are all useful for our life.
There are enormous compounds that exist. Chemical methods can synthesize new compounds. Even though, most of us have little knowledge about the behavior of the substances. The reaction of the elements sometimes creates magical effects. Hence, let us see some magic tricks of science.
Formation of Dark Cloud on the Stage
Take a tub (container). Fill it with about ten liters of water. Now, carefully add about five liters of liquid nitrogen. Be careful. The formation of clouds accompanies an explosion.
Dense clouds now cover the stage in front of you. But the clouds disappear in few minutes. Hence, these are disappearing clouds. The magicians use this trick on the platform.
The boiling point of liquid nitrogen is -1960C. Thus, when we pour it into the water; it vaporizes immediately. Hence, it vanishes into the air. Even the air contains 79% of nitrogen. Thus, even if we breathe the vapors, there is no problem.
A Shower of Cloudy vapors
Take a hundred ml of liquid nitrogen bottle. Open it & insert a long hollow glass tube. You will find a shower of clouds ensuing from the mouth of the hollow glass tube.
Prepare Ice Instantly Â
Take water in a beaker. Pour about five ml of liquid nitrogen. In a few seconds, the water turns into ice.
Produce Ash from the air
Rub your hands with Mercuric chloride-HgCl2.
Show your hands to the audience that there is nothing in your hand. Take an aluminum coin. Now put the aluminum coin in your hand & close your fist.
After, few minutes, open your fist. Show the ashes in your hand to the audience.
Aluminum reacts with HgCl2. It is an exothermic reaction. Hence, the residual ashes contain aluminum chloride.
Water Creates Fire
Mix iodine crystals (less amount) & aluminum (Al) powder in a beaker. Mix it properly by crushing. Now put this mixture on an asbestos sheet. Now, sprinkle a little water on it.
See the magic. Violate vapors develop & suddenly there is fire. Thus, water causes a fire.
Aluminum reacts with iodine in the presence of water. Here, water acts as a catalyst. In fact, it’s an exothermic reaction. Thus, it results in vapors of iodine & fire.
PERFORM THESE EXPERIMENTS IN PRESENCE OF AN EXPERT.Â
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