GCSE Science Chemistry (9-1) - Tests for Gases

[@2squid]

this is better than the other video my teacher sent on google classroom

[@zayanalikhan7302]

Im here from Google classroom sent by my teacher 😉

[@2squid]

@@zayanalikhan7302 you to

[@rajanig4421]

@@2squid Same here!

[@afiafae]

Same cuz all of y7,8 and 10 got sent home

[@aysegulgilgil6083]

sameeee

[@yashshah8033]

1, Hydrogen: "Pop" sound when taking a flaming splint (matchstick) near the reaction vessel.
2, Oxygen: A "glowing" splint put near the mouth of the reaction vessel, then it will turn out flaming again.
3, Carbon dioxide: Test with lime water, a positive result is turning out a milky solution.
4, Ammonia: Turns red litmus paper to blue.
5, Chlorine: Turns blue litmus paper to red then bleach

[@blank-hp6kv]

ugh ty

[@maisie1910]

hero

[@zyloptic2340]

Who else had this for your lockdown science lesson

[@arjenrandhawa]

I did

[@solar2145]

me

[@s.m.386]

Omg yes

[@randomerjsvn6152]

nahhh, evryone sub, he deserves so much more subscribers. legend.

[@James-712]

Guy: so when you light the hydrogen gas, it should make a popping sound.
*Deaf people: Am i a joke to you?*

[@zni1925]

Those who cannot hear well, can put a glass slide above the splint and will observe droplets of water made.

[@zni1925]

If your hearing is impaired, you can put a glass slide over the splint and you will see water droplets made. You can test the water droplets with cobalt chloride paper , which will turn pink.

[@Delo997]

@@Swiftaylor Yes and that was a fun and useful response

[@siddharthvasudevan6110]

@@zni1925 r/wooosh

[@zyloptic2340]

ur a legend

[@kimvale5787]

Fantastic and so useful during lockdown - thank you. I really like the replacement of the tiny electrolysis equipment that we have - you could still collect the gases in upturned ignition tubes. Brilliant, thank you again

[@ScienceRevisionChannel]

Thanks

[@esmaegordon8912]

this was actually so helpful, thanks ☺️✌🏼✨🧚🏼‍♀️

[@ScienceRevisionChannel]

Awesome! Pleased it helped. 😃

[@patriciahugman5285]

nice clear video - great summary pages for each test. Just one correction - at 2'28" you say that marble chip is calcium chloride, when it is calcium carbonate.

[@multitalented8484]

Thanks, I got confused too

[@kudzie.h.gahadzikwa534]

writing Alevel chem prac tomorrow veryyyyy useful thank youuuuu loaddssssssss of love from zimbabwe

[@nkuidjoufabien4555]

Excellent presentation

[@ScienceRevisionChannel]

Thank you for your kind feedback!

[@dylax-infectedzz6063]

THANK YOU SO MUCH, TOMORROW I HAVE GASES TEST FOR OXYGEN, HYDROGEN, CARBON DIOXIDE AND CHLORINE ITS USEFUL AND HELP ME TOO MUCH

[@ScienceRevisionChannel]

Pleased it helped!

[@teachercpdshorts6492]

Nice one!

[@qfeodorhincu7351]

very well explained and very helpful thank you

[@sammirison7755]

Eecellent clear demos, with great voice. Thanks

[@shehlababar842]

My teacher sent this to me. Very helpful! We're learning properties of gases

[@ScienceRevisionChannel]

Awesome! Thanks for the feedback.

[@hosannagodsblessy8271]

very useful and amzing explaination

[@nixie_thepixie]

This was very useful... thanks...

[@user-dh4lu9mp6l]

Brilliant video but please correct the name of the calcium compound used for CO2 - obviously just a slip. Great video though

[@firasgamer5426]

THANK U, this was really helpful

[@josephjohn6367]

you are the best ihave ever seen

[@wainmufungaa]

This is wonderful thank you....got an igcse exam tomorrow 😃

[@ScienceRevisionChannel]

I am pleased it was useful. Thanks

[@zyloptic2340]

im doing this in year 8 bruh

[@tawanaevans8401]

I like your surname😍

[@oneforallanimes4489]

@@tawanaevans8401 what does it mean

[@kidsstoriesbyakshattripath9512]

Superb presentation excepting more video like this 👍👍👍👍👍👍😀😀😍😍😘😘

[@kidsstoriesbyakshattripath9512]

BTW where are u from, sir

[@ScienceRevisionChannel]

Thank you so much 😀

[@tommartin3134]

Thanks for this.

[@fathimamifra410]

Most excited lesson....

[@mosesnkwela6461]

Your are good teacher I dream to be

[@lekgoadiba8972]

Cool science

[@bikashsarkar2285]

it was easy and intresting
thanks for sharing these video

[@docpurp]

Great video!

[@alpharaharold5378]

Istg, this is the best chemistry practical video I've ever seen!! It's sooo nice and clear. Your video is soo helpful for me as an IGCSE (9-1) student. Thank you a lott 🤍

[@charliegeorgina3151]

Thank you sir 💪🏼

[@KYZ__1]

Very useful summary!🧪

[@r.a.6459]

There's another way to test for CO2: trap the gas in a test tube, light a splint and place it in the test tube.
*The flame will extinguish*

[@doraemonlovers7107]

Thank you so much Sir, I request you to help us more with videos like these

[@user-bu9xq1gl6r]

yeah

[@maryadeniji9986]

Thanks so much for this experiment

[@annadavletshina1432]

very useful, thank you

[@fabihaanjum7760]

this was totally useful thank you!

[@rubyloren1994]

MERCI BEAUCOUP

[@ajay_1law786]

My science teacher said I should watch this for class

[@Leo-rq5go]

Good video 🎉😊

[@kirarieletoad]

Please sir can you try to test CO2 with a glowing splint since CO2 is a fire extinguisher it will off the flame

[@qyda9951]

Very useful. Thanks :D

[@ScienceRevisionChannel]

Glad it was helpful!

[@qyda9951]

@@ScienceRevisionChannel I got a reply from the creator! Thank you so much, I watch all your videos :D

[@ScienceRevisionChannel]

😄 you are welcome!

[@ollyd9461]

hi schoolers

[@radiator6110]

ayy olly

[@waful9466]

Hi I am noah lol

[@waful9466]

piss piss

[@ollyd9461]

Aight gerkin

[@saleemnasraween3259]

instead of making carbon dioxide, just bubble with your mouth through a straw, the mouth already produces carbon dioxide when breathing

[@pie38484]

thank you, that was very helpful

[@hhn5200]

good

[@alliemobara8549]

You are using calcium carbonate (not calcium chloride) to prepare carbon dioxide

[@ScienceRevisionChannel]

Well spotted! I didnt realise I had said that. I will find a way to add that in.

[@samb9138]

Yes that’s right- well spotted!

[@leofetzer8977]

Really helped me

[@williamsmith8231]

Thank you !!!

[@anupriyasett8738]

nice video

[@ScienceRevisionChannel]

Thanks

[@SueMahmoud-bb2ry]

I got a question when he was testing for co2 gas he said that marble chips are calcium chloride. How’s that? I think marble chips are calcium carbonate not calcium chloride. Isn’t that correct?

[@ScienceRevisionChannel]

It’s calcium carbonate

[@AndewMole]

we are encouraged to say "a white precipitate forms" rather than "the limewater turns milky/cloudy"

[@abdallahaladwan4132]

Great

[@tawanaevans8401]

So helpful

[@ScienceRevisionChannel]

Glad you think so!

[@danielaamrithraj5495]

Thankyou ❤️

[@joshuachihana7418]

👌

[@user-bu9xq1gl6r]

ohh thats cool❤

[@motiravepriyanka9519]

Thank you🤩

[@thiruveleyudham4376]

2:27 won’t it be calcium carbonate and not calcium chloride as calcium chloride + hcl doesn’t produce CO2

[@ScienceRevisionChannel]

You are absolutely correct! Slip of the tongue when making the video.

[@pinkipaul2687]

it's perfect

[@suchithrarohit6080]

Marble is not Calcium Chloride but calcium carbonate

[@ScienceRevisionChannel]

Well spotted. I didn’t realise I had said that when posting the video. I will try to get something to pop up to correct it.

[@ibphysicsclassroom]

How do I test for something I already what it is? It already has label. To be authentic it shouldn’t be know

[@oblaswamyg4692]

Sir I am confused while you testing for hydrogen what you have added Dil or concentrated HCl I think it is concHcl due to fumes am I right

[@ScienceRevisionChannel]

Hi Obla, I used HCl. The more concentrated the acid the quicker the reaction (hydrogen gets produced faster), the more dilute the acid the slower the reaction (hydrogen gets produced slower).

[@mehakamer7708]

I have a question. What colour does the litmus paper turn when you add ammonia?

[@ScienceRevisionChannel]

It turns damp red litmus paper or damp universal indicator paper blue.

[@velocityop3810]

the last thing you forgot is to bubble the gas produced through limewater which turns cloudy as a positive result

[@bald5751]

He did say that tho..?

[@iamavr8176]

epic gamer

[@shubhasri1206]

Can i use concentrated acids for getting better results?

[@ScienceRevisionChannel]

Higher concentration will result in a faster rate of reaction.

[@bonaganisrinu2862]

👍

[@sugarcrane7982]

cooll

[@HarshilFTW]

🙂🔪

[@qyda9951]

nice

[@zyloptic2340]

lmao

[@elias.n5616]

Nice but it's not calcium chloride, it's calcium carbonate that produces carbon dioxide with hydrochloric acid. U can't edit the UA-cam video, so I suggest u comment it and pin it. Or pin mine 🙂

[@ScienceRevisionChannel]

Hi yes it was a slip of the tongue as I was recording. I added a card at the top of the video but I think some viewers don’t get the card. Thanks for flagging.

[@elias.n5616]

@@ScienceRevisionChannel Hahaha no worries it happens. Thanks for the content

[@mzrl4269]

Anyone here from C8y/sc2 not going to say the school name

[@philip8866]

Who came here for a school project