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Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: Win,odd Dhamnekar on April 06, 2023, 11:08:36 AM

Title: Predict the products of reactions
Post by: Win,odd Dhamnekar on April 06, 2023, 11:08:36 AM
1)MnCO3 (s)+ HI(aq)  :rarrow:

Answer: MnCO3 (s) +2HI(aq)  :rarrow: MnI2 (aq)+H2O(l) +CO2(g)

2)CoO (s) + O2(g) :rarrow:

Answer: 6CoO(s) +O2 (g) :rarrow: 2Co3O4(s)

3)La(s) + O2(g)  :rarrow:

Answer: 4La(s) + 3O2(g) :rarrow: 2La2O3(s)

4)V(s) + VCl4(s)  :rarrow:

Answer:V(s) + VCl4(s) :rarrow: 2VCl2(s)

5)Co(s) + xsF2(g) :rarrow:

Answer: Co (s) + xsF2(g)  :rarrow: CoFxs(s)

6)CrO3(s) + CsOH (aq)  :rarrow:

Answer:CrO3(s) + 2CsOH(aq)  :rarrow: Cs2CrO4(aq) + H2O(l)

Please note that in reaction 5), xs represents an excess of F2. The product will be a cobalt fluoride with a stoichiometry that depends on the amount of F2 used.
Title: Re: Predict the products of reactions
Post by: Hunter2 on April 06, 2023, 03:36:18 PM
1. correct
2. Why no Co2O3
3.correct
4.what about with VCl3
5.what about with CoF3
6. What about with Cs2Cr2O7
Title: Re: Predict the products of reactions
Post by: Borek on April 07, 2023, 03:00:04 AM
6. What about with Cs2Cr2O7

CsOH suggests alkaline conditions.
Title: Re: Predict the products of reactions
Post by: Win,odd Dhamnekar on April 07, 2023, 04:36:54 AM
1. correct
2. Why no Co2O3
3.correct
4.what about with VCl3
5.what about with CoF3
6. What about with Cs2Cr2O7
Your answers for questions 2,4 5,6 are also correct. 🤩
Title: Re: Predict the products of reactions
Post by: Hunter2 on April 07, 2023, 05:00:58 AM
6. What about with Cs2Cr2O7

CsOH suggests alkaline conditions.

And CrO3 suggest acidic condition. The question is which compound is in excess.