Hydrogen – the easiest of the known gases. Hydrogen has neither color, nor taste, nor a smell. Quickly extends, gets through the smallest time. Chemical formula of H2 hydrogen, international name: hydrogenium
It is required to you
- Two test tubes
- Exhaust tube
- Pneumatic bathtub
Instruction
1. Vladimir Ryumin, the author of the book "Entertaining Chemistry", advises to work as follows. The end of an exhaust tube through which hydrogen will arrive to ship in a pneumatic bathtub. The pneumatic bathroom in this case can consider any wide vessel filled with water. For example, deep bowl or plate. To take the first test tube. To fill it up to the top with water, to close a wide opening a finger and to place a test tube over an exhaust tube so that the end of a test tube was shipped in water of a pneumatic bathtub. To take away a finger. Now gas which will go from an exhaust tube will gather on the soldered end of a test tube and to gradually force out from it water. It is called "to fill a test tube from under water". This way is necessary because there is a danger of formation of the rattling hydrogenmix and oxygen. This mix therefore is called ""rattling"" that ignites from the slightest spark as a result explodes with dazzling flash, forming at the same time water vapor. Burning down in air, hydrogen is oxidized and turns into water, thereby justifying and confirming the name.
2. To take the second empty test tube. To put it an opening up near the first. In this case the test tube is only considered "empty", actually it is filled with air. In it we" will also "pour" hydrogen.
3. As hydrogen is fourteen times lighter than air, it should be poured "on the contrary", that is to hold test tubes turned. For this purpose the test tube filled with hydrogen needs to be turned as soon as possible up an opening so that it was necessary just under an opening of the second test tube. Light gas will rise or "will pour down" upward and will force out more close air from the top test tube. It is possible to acquire this skill, not one will be required, and several exercises. We got used to liquids heavier than air which flow from top to down, well, and with substances everything is easier than air in a different way.