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Homework!! NEED HELP!
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- ChenBeier
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Re: Homework!! NEED HELP!
1.Some oxidation numbers has to be learned like vocabulary of a language.
Elements 0, even bonded together like O2
Hydrogen +1 , in hydrides also -1
1. Group +1
2. Group +2
3. Group +3, heavy one also +1
4. Group +4, +2, -4, carbon have all from +4 to -4
5. Group +5, -3 Nitrogen all from +5 to -3
6. Group +6, -2, oxygen only +2 ,+1 -1, -2
7. Group +7 to -1, flourine only -1
8. Group 0, Kr,Xe,Rn also +8
The others can be calculated with this knowledge
Example N2O5
0 = 2 * x( N)+ 5*(-2)O => x(N) = + 5
Try the other by yourself
2. a Ammonium nitride ( NH4)3N is not existing, decompose to 4 NH3
b. is not clear only one compound
c. Flourine will exchange the bromine even react with it, also iron will be oxidised
Elements 0, even bonded together like O2
Hydrogen +1 , in hydrides also -1
1. Group +1
2. Group +2
3. Group +3, heavy one also +1
4. Group +4, +2, -4, carbon have all from +4 to -4
5. Group +5, -3 Nitrogen all from +5 to -3
6. Group +6, -2, oxygen only +2 ,+1 -1, -2
7. Group +7 to -1, flourine only -1
8. Group 0, Kr,Xe,Rn also +8
The others can be calculated with this knowledge
Example N2O5
0 = 2 * x( N)+ 5*(-2)O => x(N) = + 5
Try the other by yourself
2. a Ammonium nitride ( NH4)3N is not existing, decompose to 4 NH3
b. is not clear only one compound
c. Flourine will exchange the bromine even react with it, also iron will be oxidised
- Dhamnekar Winod
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Re: Homework!! NEED HELP!
Reaction in 2.c is \(2F + FeBr_2 \rightarrow FeF_2 + Br_2\)
Any science consists of the following process. 1) See 2)Hear 3)Smell,if needed 4)Taste, if needed 5)Think 6)Understand 7)Inference 8)Take decision [Believe or disbelieve, useful or useless, true or false, cause or effect, any other criteria]
- ChenBeier
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Re: Homework!! NEED HELP!
This is wrong . There is no 2 F.
Flourine is the strongest oxidiser so everthing will oxidised.
2 FeBr2 + 9 F2 => 2 FeF3 + 4 BrF3
Flourine is the strongest oxidiser so everthing will oxidised.
2 FeBr2 + 9 F2 => 2 FeF3 + 4 BrF3
- Dhamnekar Winod
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Re: Homework!! NEED HELP!
Thanks for correction. But can we write this reaction in this way also?
FeBr2 + 4 F2 => FeF2 + 2 BrF3
FeBr2 + 4 F2 => FeF2 + 2 BrF3
Any science consists of the following process. 1) See 2)Hear 3)Smell,if needed 4)Taste, if needed 5)Think 6)Understand 7)Inference 8)Take decision [Believe or disbelieve, useful or useless, true or false, cause or effect, any other criteria]
- ChenBeier
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- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Re: Homework!! NEED HELP!
You forget that iron also will oxidised from Fe 2+ to Fe 3+. Flourine will oxidise everything to high oxidation number.
- Dhamnekar Winod
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- Joined: Sat Nov 21, 2020 10:14 am
- Location: Mumbai[Bombay] and Mumbai Suburb,, Maharashtra State,India
Re: Homework!! NEED HELP!
Okay, Thanks.
Any science consists of the following process. 1) See 2)Hear 3)Smell,if needed 4)Taste, if needed 5)Think 6)Understand 7)Inference 8)Take decision [Believe or disbelieve, useful or useless, true or false, cause or effect, any other criteria]