Question

Три сосуда заполнены водородом,кислородом и воздухом.Как определить,где какой газ находится??

Answer 1

Водород-если поднести горящую лучину,то раздастся хлопок
кислород-если поднести потухшую лучину,то вспыхнет
остался воздух

Answer 2

Identifying Gases in Three Vessels

To determine which gas is in each vessel, you can use the fact that different gases have different physical and chemical properties. Here's how you can identify the gases in the vessels:

1. Hydrogen, Oxygen, and Air in the Vessels

The three vessels are filled with hydrogen, oxygen, and air. Each gas has distinct properties that can be used to identify them.

2. Testing for Hydrogen, Oxygen, and Air

- Hydrogen (H2): Hydrogen is highly flammable. You can test for the presence of hydrogen by bringing a flame close to the opening of the vessel. If there's a pop sound or a flame ignites, it indicates the presence of hydrogen. .

- Oxygen (O2): Oxygen supports combustion. You can test for the presence of oxygen by using a glowing splint. If the splint reignites when introduced into the vessel, it indicates the presence of oxygen. .

- Air: Air is a mixture of gases, primarily nitrogen (about 78%) and oxygen (about 21%) with trace amounts of other gases. You can use the tests for hydrogen and oxygen to rule out their presence, and the remaining gas would be air. .

3. Conclusion

By performing these simple tests, you can determine which gas is in each vessel. Remember to exercise caution when handling flammable gases and open flames.

I hope this helps! If you have further questions or need additional assistance, feel free to ask.