GCSE Chemistry - How to Test for Gases - Testing for Chlorine / Oxygen / Hydrogen / CO2 #64

In this video, you'll learn:
- The test for detecting chlorine gas
- The test for detecting oxygen gas
- The test for detecting hydrogen gas
- The test for detecting carbon dioxide gas

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
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Amadeus & Tom

[@kimbrittanyedits]

Chemistry isn't hard but when teacher makes it complicated then it is difficult lol!

[@whyyoulooking4944]

Facts

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This

[@carlo8308]

Actually

[@carlo8308]

They suck

[@Notbell_202]

so true

[@TealProjects]

Not gonna lie, this was pretty good in explaining how to test for gases. Keep up the great work!

[@bedwars1013]

I just test for gases by inhaling, it's a fun kind of Russian roulette in class.

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i like this idea

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[@Cognitoedu]

Happy to hear it helped!

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Man thousands of students are thanking u

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Anyone been sent here by a teacher in lockdown

[@geezer1024]

small error I think: 2:53
in the equation for co2 and ca(OH)2 you say that Ca(OH)2 is a gas in the state symbol when I think it is aqueous.

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You gay for that bro let him teach me

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[@yellowmsp8570]

Thank you for this video but I just have a question when talking about the litmus paper turning red because chlorine dissolves in the water on the blue litmus paper you said that hydrogen chloride is made but isn't a reaction between chlorine and H20, hypochlorous acid?

[@jungoonosebiter]

Nono you see when you damp a litmus paper there's water means there's H2O so when it reacts with chlorine you get HCI, hydrochloric acid (the blue litmus paper turns red becuz its acidic) but then it will become HOCI (hypochlorous acid) because chlorine bleaches so litmus paper becomes from red to white

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Yes of course, by a plane or helicopter

[@whyyoulooking4944]

And why the litmus paper in chlorine test turned white or colourless and what is meant by bleached?

[@teenagegirl43]

Bleached means it turns white

[@CauseOfBSOD]

1:42 instructions unclear, now my hand is burnt and the splint didnt relight

[@CauseOfBSOD]

(this is a joke)

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@@CauseOfBSOD i appreciate the clarification bro

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Why do hydrogen give a pop

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Who asked?

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