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Please Who Can Answer This Chemistry Question? by OfficialR(m): 3:43pm On Jun 27, 2021 |
A compound G on heating gives a cracking sound, reddish brown fumes H, a gas J which rekindle/relight a glowing splint and a residue K. The residue K is reddish brown when hot and yellow when cold i) Identify G, H, J and K ii) What is the name given to the cracking sound? Please answer urgently needed. Thank you. |
Re: Please Who Can Answer This Chemistry Question? by Nobody: 4:28pm On Jun 27, 2021 |
The answer to {ii} should be decrepitation... ![]() I might be right/wrong. I leave the rest to the real Chemistry students. 1 Like |
Re: Please Who Can Answer This Chemistry Question? by Internetsombody: 7:13pm On Jun 27, 2021 |
OfficialR: G = Lead Nitrate, Pb(NO3)2 H = Nitrogen (IV) Oxide gas, NO2 J = Oxygen gas, O2 K = Lead Oxide, PbO The cracking sound is called Decrepitation Equation of reaction; 2Pb(NO3)2 + heat ==> 2PbO + 4NO2 + O2 6 Likes |
Re: Please Who Can Answer This Chemistry Question? by OfficialR(m): 8:34pm On Jun 27, 2021 |
Internetsombody: Thank you so much for the answers ![]() |
Re: Please Who Can Answer This Chemistry Question? by Internetsombody: 5:43pm On Jun 28, 2021 |
OfficialR: You are welcome sir |
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