Post here all chemistry reactions with their conditions which u think are important!

[Sikander Khan]

Reactions like haber process, extraction of metals or manufacture of sulphuric acid etc nd there r many more but i just want to compile them under this thread!! thanks everybody!!

 

[TheFinalFront]

Sign for reversible reactions: <--->

The Haber Process:
N2 + 3H2 <---> 2NH3
450 degrees Celsius and 200 atm pressure with iron catalyst.

The Contact Process:
1) S + O2 ----> SO2
2) 2SO2 + O2 <---> 2SO3 (450 degrees Celsius, 2-3 atm pressure and Vanadium Pentoxide catalyst aka Vanadium (V) oxide)
3) SO3 + H2SO4 ---> H2S2O7
4) H2S2O7 + H2O ---> 2H2SO4

Extraction of Aluminium:
At cathode: Al(3+) + 3e ---> Al
At anode: 2O(2-) ---> O2 + 4e
The graphite anode reacts with the oxygen as such: C + O2 ---> CO2

Extraction of Iron:
1) C + O2 --> CO2
2) CO2 + C ---> CO
3) Fe2O3 + CO ---> 2Fe + 3CO2 (MOST IMPORTANT)
4) CaCO3 ---> CaO + CO2
5) CaO + SiO2 ---> CaSiO3 (calcium silicate/slag)

Rusting:
4Fe + 3O2 ---> 2Fe2O3

Catalytic Converter:
2CO + 2NO ---> 2CO2 + N2 (platinum catalyst)

Combustion of Organic Compounds:
Organic compound + oxygen ---> carbon dioxide + steam (complete combustion)
Organic compound + oxygen ---> carbon monoxide + steam (incomplete combustion)

Addition of Bromine to Alkenes:​

C2H4 + Br2 ---> C2H4Br2​

Basically, just add Br2 after the formula of the alkene.​

​

Addition of Hydrogen to Alkenes (Hydrogenation) (Margarine manufacture):​

C2H4 + H2 ---> C2H6 (Nickel catalyst)​

That is, just add 2 to the number of hydrogen atoms in the molecule.​

​

Addition of Steam to Alkenes (Hydration):​

C2H4 + H2O <---> C2H5OH (3oo degrees Celsius and 65 atm pressure, Phosphoric acid catalyst)​

(THIS IS A REVERSIBLE REACTION no matter what some books may say)​

​

Fermentation:​

C6H12O6 ----> 2C2H5OH + 2CO2​

(presence of yeast, 36 degrees celsius approximately, anaerobic conditions, water)​

​

Photosynthesis:​

6CO2 + 6H2O ---> C6H12O6 + 6O2​

​

Respiration:​

C6H12O6 + 6O2 ---> 6CO2 + 6H2O (+energy)​

(exact opposite of photosynthesis)​

​

​

I know there are many others but those are all pretty basic. These are the ones that I think are the ones that cause the most confusion. Good luck with your exams. Pray for me, too.

 

[Sikander Khan]

Sign for reversible reactions: <--->

The Haber Process:
N2 + 3H2 <---> 2NH3
450 degrees Celsius and 200 atm pressure with iron catalyst.

The Contact Process:
1) S2 + 2O2 ----> 2SO2
2) 2SO2 + O2 <---> 2SO3 (450 degrees Celsius, 2-3 atm pressure and Vanadium Pentoxide catalyst aka Vanadium (V) oxide)
3) SO3 + H2SO4 ---> H2S2O7
4) H2S2O7 + H2O ---> 2H2SO4

Extraction of Aluminium:
At cathode: Al(3+) + 3e ---> Al
At anode: 2O(2-) ---> O2 + 4e
The graphite anode reacts with the oxygen as such: C + O2 ---> CO2

Extraction of Iron:
1) C + O2 --> CO2
2) CO2 + C ---> CO
3) Fe2O3 + CO ---> 2Fe + 3CO2 (MOST IMPORTANT)
4) CaCO3 ---> CaO + CO2
5) CaO + SiO2 ---> CaSiO3 (calcium silicate/slag)

Rusting:
4Fe + 3O2 ---> 2Fe2O3

Catalytic Converter:
2CO + 2NO ---> 2CO2 + N2 (platinum catalyst)

Combustion of Organic Compounds:
Organic compound + oxygen ---> carbon dioxide + steam (complete combustion)
Organic compound + oxygen ---> carbon monoxide + steam (incomplete combustion)

Addition of Bromine to Alkenes:
C2H4 + Br2 ---> C2H2Br2
Basically, just add Br2 after the formula of the alkene.

Addition of Hydrogen to Alkenes (Hydrogenation) (Margarine manufacture):
C2H4 + H2 ---> C2H6 (Nickel catalyst)
That is, just add 2 to the number of hydrogen atoms in the molecule.

Addition of Steam to Alkenes (Hydration):
C2H4 + H2O <---> C2H5OH (3oo degrees Celsius and 65 atm pressure, Phosphoric acid catalyst)
(THIS IS A REVERSIBLE REACTION no matter what some books may say)


I know there are many others but those are all pretty basic. These are the ones that I think are the ones that cause the most confusion. Good luck with your exams. Pray for me, too.

First of all thanks brother for the help!
Secondly if u can review, i guess its C2H4Br2 in Bromination or halogenation process whatever it is !

 

[TheFinalFront]

First of all thanks brother for the help!
Secondly if u can review, i guess its C2H4Br2 in Bromination or halogenation process whatever it is !

No problem.
Oh, yeah. It's C2H4Br2. That was a little typo on my part. Fixed it.

 

[Kinza Zimri]

Thanks!

 

[Dean_Castiel]

Ok a stupid question what if i write potassuim dichromate IV instead of VI will i lose marks?

 

[rameeshapak]

Cracking of a large alkane to form a smaller alkane and alkene:
Bauxite (Al2O3) and Silica (SiO2)
Absence of air
Alkane heated at 200-300'C

 

[usama321]

Sign for reversible reactions: <--->



The Contact Process:
1) S2 + 2O2 ----> 2SO2

It would be just S i think, S + O2 = SO2

 

[Sikander Khan]

It would be just S i think, S + O2 = SO2

yeah u r right

 

[Sikander Khan]

Ok a stupid question what if i write potassuim dichromate IV instead of VI will i lose marks?

No clue but i'm sure u made that mistake in ATP! right?

 

[Sikander Khan]

Guys , girls! can anybody include here the complete equations of photosynthesis and respiration too?

 

[Dean_Castiel]

Yeh so any clue.

No clue but i'm sure u made that mistake in ATP! right?

 

[TheFinalFront]

It would be just S i think, S + O2 = SO2

Yeah, that was another error. It was my first time typing all these equations on a computer so I messed up. I've rechecked them all and have added respiration, photosynthesis and fermentation, too.

 

[usama321]

Yeah, that was another error. It was my first time typing all these equations on a computer so I messed up. I've rechecked them all and have added respiration, photosynthesis and fermentation, too.

you did a great job