Thermal Decomposition of Zinc Carbonate

[@hm.editzz]

Sent here by a science teacher,

[@IDK-oc5gq]

same

[@mrjonny6762]

me too

[@dermotrayner2889]

sent here by chemistry teacher

[@oilyhart9855]

Same lol

[@Sanchali0107]

Sent here for chemistry project lol

[@Focuspls-xk8sj]

thank you im watching this before my practical exam

[@aryansista3904]

Thank you for the video...this has helped me a lot to understand visually about the thermal decomposition of zinc carbonate...and why does it turn yellow.Thank you.

[@boofang10]

Thanks Mr Yeo 👍🏻👍🏻 .. well composed video, especially with catchy guitar tunes !! 😁🎶🎵

[@SunilGupta-iu5ms]

You deserve more subscribers

[@vyasbrijesh9569]

Yes , you are right 🙂

[@kumaratharva5318]

Thanks sir for the informative video as it will come to my 20 mark project ❤

[@astargaming7509]

The tune is so relaxing

[@editsbhavi07]

Thank you .....I can understand very well from this video

[@Pritii_ideas]

Nice one

[@rubyfinneran571]

Is carbon dioxide produced in all thermal decomposition reactions? And is the limewater to show that it is thermal decomposition because carbon dioxide is produced?

[@kumarsushil3995]

Ruby Finneran it is only produced in carbonates

[@nguyen6021]

May I ask whether you have recorded the mass change for this experiment?

[@tishlox]

A doubt here! When we leave the yellow zinc oxide to cool it turns white. Does that mean it turns into zinc carbonate again?
[Please answer urgently]

[@blankmelo9316]

No, the zinc Oxide becomes yellow while heated because it loses some oxygen and shifts to this color. (The process is a bit more complicated but this isn't important) When it cools it gets reversed to it's original white color, so the product is still Zinc Oxide.

[@farzanul7723]

How many seconds does it take to happen

[@rehaanpuliyamkotte9767]

Thank you 🙏

[@shivanipatel8598]

hey i have a question why does zinc carbonate turn yellow when heat and goes back to white when cool down ??????

[@YeoYongKiat]

When heated, it forms zinc oxide - when hot, zinc oxide actually loses a fraction of its oxygen atoms and forms a non stoichiometric compound. Simply put, some of the oxygen atoms go missing when zinc oxide becomes hot because they get lost to the air - this forms gaps between the zinc ions. This is known as an interstitial crystal defect - owing to the electric fields between the zinc ions, you get a yellow coloration.

[@shivanipatel8598]

so it turn white again due to the oxygen in the air? is that right

[@amberrhema15]

very helpful!!! tq so much!

[@fireflyoncrack7201]

Awesome

[@elon2707]

Sheeeesh

[@gamingglory405]

Kal hai practical

[@suniluniyal2029]

Thank u

[@vanshikamodivines9166]

it happens

[@samilqafarov7075]

спосипо

[@alfinbasheet8949]

Bad music

[@hazel748]

How does that even matter

[@Moha-sl2yz]

Alfin Basheet 😂😂

[@blankmelo9316]

Voiceovers are better lol