Question

Dry hydrogen gas was burned in air and the products cooled and collected as shown a Name Two reagents that could be used to generate the hydrogen gas

Answer 1

Answer:

Experiments

Combustion of hydrogen in air

In association with Nuffield Foundation

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Try this demonstration or class experiment to investigate how varying amounts of fuel and oxygen affect combustion

This practical can be used to introduce the idea that the relative amounts of a fuel and oxygen (from air) are important in combustion, and that there will be an optimum ratio in which the two substances react. This leads on to the idea of chemical equations.

In the case of a class experiment, where students generate the hydrogen themselves under strict supervision, all the hydrogen generators must be collected once the test tubes have been filled and before any flames are lit, to prevent the possibility of accidental or deliberate ignition of the hydrogen in the generator. This has caused a number of accidents in the past. Alternatively the test tubes could be filled with hydrogen beforehand, or by students under supervision, from a steady cylinder supply.

The time for carrying out the demonstration should be about five minutes. More time (20–30 minutes) will be needed for the class experiment.

Equipment

Apparatus

For one demonstration

Eye protection

Glass or plastic trough

Test tubes, x3

Test tube rack

Delivery tube for gas collection over water (see the diagram below)

Rubber bungs to fit test tubes, x3

Waterproof marker pen

Wooden splints

Boss, clamp and stand

Explanation:

Chemicals

For one demonstration

Access to a source of hydrogen gas (EXTREMELY FLAMMABLE): a cylinder and regulator, or chemical generator (see Generating, collecting and testing gases) fitted with a length of rubber tubing

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Answer 2

dry hydrogen has gas was burnt India and the products cool and collected as soon as name two ingredients that could be used to connect hydrogen gas which can we use that that that that that so so so so so so lak lak lak lak lak lak