Chemistry at University Of Mumbai | Flashcards & Summaries

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Lernmaterialien für chemistry an der University of Mumbai

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TESTE DEIN WISSEN
Why can carbon form so many different compounds
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TESTE DEIN WISSEN
  • It has the ability to form chains, branch chains and rings of different sizes.
  •  The carbon to carbon single bonds and the single carbon to hydrogen bonds present in most organic compounds have strong bonds within very low polarity and are therefore not very reactive.
  • When carbon atoms form chains or rings linked by single covalent bonds no more than two of the bonds of each carbon atom are used. The remaining two bonds can bond to other atoms such as hydrogen, oxygen, nitrogen and the halogens
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TESTE DEIN WISSEN
What is a trend in boiling point and molten point from nitrogen to fluorine
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TESTE DEIN WISSEN
The melting point to remain relatively low and elements are still simple molecules
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TESTE DEIN WISSEN
What is atomic number 
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TESTE DEIN WISSEN
The number of protons in an atom of an element
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TESTE DEIN WISSEN
What is the relative charge of an electron 
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TESTE DEIN WISSEN
-1
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TESTE DEIN WISSEN
What is solubility
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TESTE DEIN WISSEN
The abilities to be dissolved especially in water
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TESTE DEIN WISSEN
What is molecular formula
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TESTE DEIN WISSEN
It indicates the kind of atoms and number of its kind in a molecule of a compound
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TESTE DEIN WISSEN
What is a pie bond
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TESTE DEIN WISSEN
Double bonds that’s form when p-orbitals overlap vertically
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TESTE DEIN WISSEN
What is the equation for bond enthalpy
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TESTE DEIN WISSEN
X-Y (g) ——>> X(g) + Y(g)
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TESTE DEIN WISSEN
What happens to atomic radius as you go across a period (left to right)
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TESTE DEIN WISSEN
It decreases because the increased number of protons create more positive charge attraction for electrons which are in the same shell so similar shielding 
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TESTE DEIN WISSEN
Why do compounds with permanent dipole dipole interactions have a higher boiling point than compounds with induced dipole dipole interactions 
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TESTE DEIN WISSEN
They are stronger
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TESTE DEIN WISSEN
Why are successive ionisation energies always larger?
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TESTE DEIN WISSEN
The second ionisation energy of an element is always bigger than the first ionisation energy. This is because the ion formed is smaller than the atom and the proton to electron ratio in the 2+ ion is greater than in the 1+ ion. Therefore the attraction between the nucleus and the electron is stronger
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TESTE DEIN WISSEN
What is a sub shell
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TESTE DEIN WISSEN
A group of over to us with share the same principle quantum number
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Q:
Why can carbon form so many different compounds
A:
  • It has the ability to form chains, branch chains and rings of different sizes.
  •  The carbon to carbon single bonds and the single carbon to hydrogen bonds present in most organic compounds have strong bonds within very low polarity and are therefore not very reactive.
  • When carbon atoms form chains or rings linked by single covalent bonds no more than two of the bonds of each carbon atom are used. The remaining two bonds can bond to other atoms such as hydrogen, oxygen, nitrogen and the halogens
Q:
What is a trend in boiling point and molten point from nitrogen to fluorine
A:
The melting point to remain relatively low and elements are still simple molecules
Q:
What is atomic number 
A:
The number of protons in an atom of an element
Q:
What is the relative charge of an electron 
A:
-1
Q:
What is solubility
A:
The abilities to be dissolved especially in water
Mehr Karteikarten anzeigen
Q:
What is molecular formula
A:
It indicates the kind of atoms and number of its kind in a molecule of a compound
Q:
What is a pie bond
A:
Double bonds that’s form when p-orbitals overlap vertically
Q:
What is the equation for bond enthalpy
A:
X-Y (g) ——>> X(g) + Y(g)
Q:
What happens to atomic radius as you go across a period (left to right)
A:
It decreases because the increased number of protons create more positive charge attraction for electrons which are in the same shell so similar shielding 
Q:
Why do compounds with permanent dipole dipole interactions have a higher boiling point than compounds with induced dipole dipole interactions 
A:
They are stronger
Q:
Why are successive ionisation energies always larger?
A:
The second ionisation energy of an element is always bigger than the first ionisation energy. This is because the ion formed is smaller than the atom and the proton to electron ratio in the 2+ ion is greater than in the 1+ ion. Therefore the attraction between the nucleus and the electron is stronger
Q:
What is a sub shell
A:
A group of over to us with share the same principle quantum number
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