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lana [24]
3 years ago
5

The polymer formed from the monomer ch2=ch–cn is select one:

Chemistry
1 answer:
podryga [215]3 years ago
5 0
Answer:
             None of the given options show polymer made up of H₂C=CH-CN (Acrylonitrile).

Explanation:
                   Acrylonitrile (H₂C=CH-CN) which is a monomer on self linkage results in a large chain polymer called as Polyacrylonitrile.
                   The structure of Polyacrylonitrile is as follow,

                                             --(H₂C-CHCN-)n--

Where n shows the number of Acrylonitrile units joined together in the formation of Polyacrylonitrile. This polymerization reaction can take place by different mechanisms including free radical mechanism, acid catalyzed addition or base catalyzed addition reaction.

The polymerization is shown below,

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3 years ago
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What mass of oxygen would be produced upon thermal decomposition of 25 g of potassium chlorate (kclo3)? the molecular weight (mw
blagie [28]
The formula for potassium chlorate is:    2KClO₃   →   2KCl   +   3O₂

If moles =  mass ÷ molar mass  

then moles of KClO₃   =  25 g  ÷  [( 39 × 1 ) + ( 35.5 × 1) + ( 16 × 3)] g/mol
                     
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                                   =  0.2041 mol


Now the mole ratio of   KClO₃    :   O₂     is    2   :   3

∴  if moles of KClO₃   =  0.2041 mol

  then moles of O₂     =  ( 0.2041 mol ÷ 2 ) × 3
          
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Now since mass = moles × molar mass

∴ the mass of oxygen produced  =  0.3061 mol  × ( 16 × 2) g/mol
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∴ the grams of oxygen gas produced when 25 grams of potassium chlorate is decomposed is ~ 9.80 g.
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The trend of ionization energy in the periodic table is decreasing from right to left and from top to bottom. In this case, we are given with elements <span>K, Ca, Ge, Se, Br, Kr and see the periodic table to check the trend. The answer from highest to lowest Kr, Br, Se, Ge, Ca, and K</span>
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3 years ago
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Enthalpy of atomisation
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Answer:

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Explanation:

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