Decomposition Reactions: Predicting Products

[@YousifDev]

My favorite chemistry teacher, i literally study my chemistry exams in this channel

[@wbreslyn]

Thanks, that is motivating for me to hear!

[@hyanglasaurus3211]

Sir can you please make an elaborate video on organic chemistry? It would be really very helpful

[@acetylen14]

I think you made a small mistake at 4:40, the formula of aluminum carbonate should be Al2(CO3)3, not Al2(CO3)2

[@acetylen14]

Still an amazing video though!

[@wbreslyn]

You are absolutely right! Thanks for pointing that our, I'll put a note in the video.

[@ayushisingh9765]

I like your videos, thanks a lot in helping me in my studies.

[@wbreslyn]

You are welcome!

[@Ghiyggnutredgjoo]

How do you predict the products of chromates? Lets say, (NH4)2Cr2O7. Cr2O3 being one of the products is understandable but I assumed the other one would be NH3 but Its actually N2.

[@wbreslyn]

That dichromate ion is a strong oxidizer. So that plays a big role in N2 instead of NH3 being formed.

[@SATHYAPRIYAPARAMESWARAN]

Literally very useful

[@wbreslyn]

Great to hear!

[@Soumit22344]

Like in combination reaction between elements, a compound product is formed by balancing the charges of elements, Does it also happens in combination reaction between two compounds to form a single compound as a product. And how it is done ? Explain in detail with a simple example.

[@wbreslyn]

Sure: Calcium oxide (CaO) + Carbon dioxide (CO2) → Calcium carbonate (CaCO3) Ammonia (NH3) + Hydrochloric acid (HCl) → Ammonium chloride (NH4Cl) Sulfur dioxide (SO2) + Water (H2O) → Sulfurous acid (H2SO3)

[@Soumit22344]

@@wbreslyn how to balance the charges or criss-cross the charges of compounds in reactant to form a single compound product ? Explain.

[@Soumit22344]

Sir, how to balance the charges or criss-cross the charges of COMPOUNDS in reactant to form a single compound product as like of Combination reaction between two elements to form a compound ? Explain.

[@wbreslyn]

This should help! kzbin.info/www/bejne/bWivh6usZZqLgac

[@studyrain-ne3ur]

sir i usually watch your videos, and i just came here to understand a question that is not in this video , is CCl3F polar or non polar i know the electronegativities of Cl and F are different but they seem to have the same amount of lone pairs as Cl in CCl3F, and symmetric distribution of lone pairs result in a non-polar molecule

[@wbreslyn]

This should help! kzbin.info/www/bejne/aqXKnJVtbbONiq8

[@Soumit22344]

Sir, I have a doubt that why Combination and Decomposition reaction is difficult to predict as compared to other reactions ? Please explain with example

[@wbreslyn]

Mainly because decomposition had five major patterns you need to learn. So it's not like double rep where you learn one pattern, here there are multiple. I go over each in the video so that should help! Combo is similar (sort of the reverse of decomp).

[@Soumit22344]

Sir, why in decomposition reaction of MCO3 -----> MO + CO2, it forms MO + CO2 and why not M + CO3 ? Please explain in depth

[@Soumit22344]

Sir, also in MOH ------> MO + H20, how it forms H20 and MO and why it doesn't form M + OH ?

[@madhorai2167]

​@@Soumit22344actually what you are asserting that why not CO3 can be understood by the fact that CO3 Will involve 6 bonds and maximum covalency of carbon is 4 only because of the absence of d orbital. Hence , this compound CO3 doesn't exist.... Note : CO3²- exist because here it is not exceeding its covalency

[@madhorai2167]

​@@Soumit22344since we are talking about decomposition rxn so I think ion must not be there and OH- is an ion

[@Wahid7X]

❤❤❤❤❤

[@friendlybg9787]

Hmm what about NaHCO3?

[@wbreslyn]

Ah, that does come up. I did it in this video here : kzbin.info/www/bejne/a5jFqHeAmcaWorcsi=xxDdlfDwleyYVHQC&t=156 but focused on the top five in the longer video.

[@friendlybg9787]

@@wbreslyn about sulphates

[@Viditchaudharyshorts]

Can you explain it more briefly

[@wbreslyn]

Probably not in a way that would result in adequate learning. You could focus on the first type, that is the most common in general chem.

[@Viditchaudharyshorts]

@@wbreslyn ohk Thanks😊

[@Sarthakpandeysp24]

Sir please start a online class for grade 12 student or High school students please sir😢😢

[@wbreslyn]

Lately I've been thinking about doing online guides! If you have a chance take a look at this and let me know what you think (there's a link to a feedback form at the top of the guide): www.Breslyn.org/uploads/Electron-Configurations.pdf