1 4 4

:

  1. #1

    Jul 2011
    -
    936



    1- 2- 3-

    ( )
    - A + B ===AB :
    1- A 2- B 3- AB 4- AB

    :
    - FeCl3 + NH4SCN ===== NH4Cl + Fe(SCN)3



    1- 3 ( ) 3- ( )
    2- ( ) 4- (

    - BiCl3 + H2O ===== BiOCl + 2HCl
    ( )

    1- ( ) 2- HCl ( )

    :

    - C2H5OH ========= CH3COOC2H5 + H2O CH3COOH +

    1- [ ]
    2- [ ]
    3- ( ) [ ]


    :

    A + B == AB+heat A + B+heat == AB
    A + B == AB , H= - A + B == AB , H=+
    A + B-heat == AB A + B == AB-heat
    ( ) ( )
    ( ) ( )

    NO2 ==== N2O4 + heat
    - NO2 ( )
    N2O4

    - ( ) NO2

    : ( ) ========== +
    ( / ) ( )
    1- ( )
    2- ( )
    3- ( )
    4- ( )

    : =
    - =
    =
    : N2 + 3H2===2NH3 , H = - =

    1- ( )
    2- ( )
    /

    1- ( )
    2-

    CH3COOH + H2O=====CH3COO- + H3O+

    1- HCl ( )
    2- ( )
    3- ( )
    / X(g) + 2Y(g) ===2L(g) , H ( -) 1- 2-
    /
    NO(g) ===1/2N2 +1/2O2 , H = (-) SO3(g) ===1/2SO2 +1/2O2 , H = (+)
    N2 O4(g) ====N2 +2O2 , H = (-)
    / H2(g)+CO2(g)==H2O(g) +CO(g) H ( +)
    1- CO2 2- 3- 4- 5-

  2. #2

    Aug 2011
    -
    2,564

    :

    Thank you so much


    refresh
    ..

  3. #3

    Aug 2011
    -
    3,025

    :


  4. #4

    Jul 2012
    5,302

    :



: 1 (0 1 )

,